Home / 1,281,567,013.44-1,768,492,438.56-724,761,712.32

Finding the Fourth Proportional to 1,281,567,013.44, 1,768,492,438.56 and 724,761,712.32

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Solution

The fourth proportional to 1,281,567,013.44, 1,768,492,438.56 and 724,761,712.32 is: 1,000,131,553.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,567,013.44 : 1,768,492,438.56 = 724,761,712.32 : x
  2. Step 2: Convert to fraction form
    1,281,567,013.44/1,768,492,438.56 = 724,761,712.32/x
  3. Step 3: Cross multiply
    1,281,567,013.44x = 1,768,492,438.56 × 724,761,712.32
  4. Step 4: Simplify right side
    1,281,567,013.44x = 1,281,735,607,995,718,144
  5. Step 5: Solve for x
    x = 1,281,735,607,995,718,144/1,281,567,013.44
  6. Step 6: Final answer
    x = 1,000,131,553.45

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Double scale
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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.