Home / 870,912,963.60-1,306,369,445.40-655,922,115.60

Finding the Fourth Proportional to 870,912,963.60, 1,306,369,445.40 and 655,922,115.60

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Solution

The fourth proportional to 870,912,963.60, 1,306,369,445.40 and 655,922,115.60 is: 983,883,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,912,963.60 : 1,306,369,445.40 = 655,922,115.60 : x
  2. Step 2: Convert to fraction form
    870,912,963.60/1,306,369,445.40 = 655,922,115.60/x
  3. Step 3: Cross multiply
    870,912,963.60x = 1,306,369,445.40 × 655,922,115.60
  4. Step 4: Simplify right side
    870,912,963.60x = 856,876,610,381,966,720
  5. Step 5: Solve for x
    x = 856,876,610,381,966,720/870,912,963.60
  6. Step 6: Final answer
    x = 983,883,173.40

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Double scale
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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.