Home / 1,520,825,446.45-2,098,070,568.71-917,659,630.90

Finding the Fourth Proportional to 1,520,825,446.45, 2,098,070,568.71 and 917,659,630.90

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Solution

The fourth proportional to 1,520,825,446.45, 2,098,070,568.71 and 917,659,630.90 is: 1,265,966,891.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,825,446.45 : 2,098,070,568.71 = 917,659,630.90 : x
  2. Step 2: Convert to fraction form
    1,520,825,446.45/2,098,070,568.71 = 917,659,630.90/x
  3. Step 3: Cross multiply
    1,520,825,446.45x = 2,098,070,568.71 × 917,659,630.90
  4. Step 4: Simplify right side
    1,520,825,446.45x = 1,925,314,663,676,808,448
  5. Step 5: Solve for x
    x = 1,925,314,663,676,808,448/1,520,825,446.45
  6. Step 6: Final answer
    x = 1,265,966,891.98

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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.