Home / 520,218,638.76-780,330,565.80-132,041,584.92

Finding the Fourth Proportional to 520,218,638.76, 780,330,565.80 and 132,041,584.92

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Solution

The fourth proportional to 520,218,638.76, 780,330,565.80 and 132,041,584.92 is: 198,063,039.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,218,638.76 : 780,330,565.80 = 132,041,584.92 : x
  2. Step 2: Convert to fraction form
    520,218,638.76/780,330,565.80 = 132,041,584.92/x
  3. Step 3: Cross multiply
    520,218,638.76x = 780,330,565.80 × 132,041,584.92
  4. Step 4: Simplify right side
    520,218,638.76x = 103,036,084,669,752,336
  5. Step 5: Solve for x
    x = 103,036,084,669,752,336/520,218,638.76
  6. Step 6: Final answer
    x = 198,063,039.25

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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.