Home / 1,158,755,145.32-1,599,124,151.22-663,813,513.20

Finding the Fourth Proportional to 1,158,755,145.32, 1,599,124,151.22 and 663,813,513.20

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Solution

The fourth proportional to 1,158,755,145.32, 1,599,124,151.22 and 663,813,513.20 is: 916,086,737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,755,145.32 : 1,599,124,151.22 = 663,813,513.20 : x
  2. Step 2: Convert to fraction form
    1,158,755,145.32/1,599,124,151.22 = 663,813,513.20/x
  3. Step 3: Cross multiply
    1,158,755,145.32x = 1,599,124,151.22 × 663,813,513.20
  4. Step 4: Simplify right side
    1,158,755,145.32x = 1,061,520,220,864,316,416
  5. Step 5: Solve for x
    x = 1,061,520,220,864,316,416/1,158,755,145.32
  6. Step 6: Final answer
    x = 916,086,737.70

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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.