Home / 726,157,671.21-1,088,410,863.56-638,547,500.97

Finding the Fourth Proportional to 726,157,671.21, 1,088,410,863.56 and 638,547,500.97

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Solution

The fourth proportional to 726,157,671.21, 1,088,410,863.56 and 638,547,500.97 is: 957,095,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,157,671.21 : 1,088,410,863.56 = 638,547,500.97 : x
  2. Step 2: Convert to fraction form
    726,157,671.21/1,088,410,863.56 = 638,547,500.97/x
  3. Step 3: Cross multiply
    726,157,671.21x = 1,088,410,863.56 × 638,547,500.97
  4. Step 4: Simplify right side
    726,157,671.21x = 695,002,036,951,644,928
  5. Step 5: Solve for x
    x = 695,002,036,951,644,928/726,157,671.21
  6. Step 6: Final answer
    x = 957,095,221.20

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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.