Home / 426,454,322.76-639,720,521.28-119,744,368.92

Finding the Fourth Proportional to 426,454,322.76, 639,720,521.28 and 119,744,368.92

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Solution

The fourth proportional to 426,454,322.76, 639,720,521.28 and 119,744,368.92 is: 179,627,514.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,454,322.76 : 639,720,521.28 = 119,744,368.92 : x
  2. Step 2: Convert to fraction form
    426,454,322.76/639,720,521.28 = 119,744,368.92/x
  3. Step 3: Cross multiply
    426,454,322.76x = 639,720,521.28 × 119,744,368.92
  4. Step 4: Simplify right side
    426,454,322.76x = 76,602,930,105,847,024
  5. Step 5: Solve for x
    x = 76,602,930,105,847,024/426,454,322.76
  6. Step 6: Final answer
    x = 179,627,514.64

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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.