Home / 1,381,142,612.16-1,905,954,280.56-754,597,555.20

Finding the Fourth Proportional to 1,381,142,612.16, 1,905,954,280.56 and 754,597,555.20

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Solution

The fourth proportional to 1,381,142,612.16, 1,905,954,280.56 and 754,597,555.20 is: 1,041,332,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,142,612.16 : 1,905,954,280.56 = 754,597,555.20 : x
  2. Step 2: Convert to fraction form
    1,381,142,612.16/1,905,954,280.56 = 754,597,555.20/x
  3. Step 3: Cross multiply
    1,381,142,612.16x = 1,905,954,280.56 × 754,597,555.20
  4. Step 4: Simplify right side
    1,381,142,612.16x = 1,438,228,440,433,550,848
  5. Step 5: Solve for x
    x = 1,438,228,440,433,550,848/1,381,142,612.16
  6. Step 6: Final answer
    x = 1,041,332,319.90

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Half scale
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Double scale
Find fourth proportional to 1,381,142,613.16, 1,905,954,281.94 and 754,597,556.20
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.