Home / 1,073,128,527.20-1,609,692,790.80-840,676,233.80

Finding the Fourth Proportional to 1,073,128,527.20, 1,609,692,790.80 and 840,676,233.80

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Solution

The fourth proportional to 1,073,128,527.20, 1,609,692,790.80 and 840,676,233.80 is: 1,261,014,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,128,527.20 : 1,609,692,790.80 = 840,676,233.80 : x
  2. Step 2: Convert to fraction form
    1,073,128,527.20/1,609,692,790.80 = 840,676,233.80/x
  3. Step 3: Cross multiply
    1,073,128,527.20x = 1,609,692,790.80 × 840,676,233.80
  4. Step 4: Simplify right side
    1,073,128,527.20x = 1,353,230,472,944,755,200
  5. Step 5: Solve for x
    x = 1,353,230,472,944,755,200/1,073,128,527.20
  6. Step 6: Final answer
    x = 1,261,014,350.70

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.