Home / 1,246,780,046.16-1,720,558,479.24-689,886,565.20

Finding the Fourth Proportional to 1,246,780,046.16, 1,720,558,479.24 and 689,886,565.20

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Solution

The fourth proportional to 1,246,780,046.16, 1,720,558,479.24 and 689,886,565.20 is: 952,044,575.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,780,046.16 : 1,720,558,479.24 = 689,886,565.20 : x
  2. Step 2: Convert to fraction form
    1,246,780,046.16/1,720,558,479.24 = 689,886,565.20/x
  3. Step 3: Cross multiply
    1,246,780,046.16x = 1,720,558,479.24 × 689,886,565.20
  4. Step 4: Simplify right side
    1,246,780,046.16x = 1,186,990,179,468,619,264
  5. Step 5: Solve for x
    x = 1,186,990,179,468,619,264/1,246,780,046.16
  6. Step 6: Final answer
    x = 952,044,575.24

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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.