Home / 870,967,443.60-1,306,563,139.80-434,491,232.40

Finding the Fourth Proportional to 870,967,443.60, 1,306,563,139.80 and 434,491,232.40

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Solution

The fourth proportional to 870,967,443.60, 1,306,563,139.80 and 434,491,232.40 is: 651,792,708.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,967,443.60 : 1,306,563,139.80 = 434,491,232.40 : x
  2. Step 2: Convert to fraction form
    870,967,443.60/1,306,563,139.80 = 434,491,232.40/x
  3. Step 3: Cross multiply
    870,967,443.60x = 1,306,563,139.80 × 434,491,232.40
  4. Step 4: Simplify right side
    870,967,443.60x = 567,690,228,820,115,456
  5. Step 5: Solve for x
    x = 567,690,228,820,115,456/870,967,443.60
  6. Step 6: Final answer
    x = 651,792,708.20

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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.