Home / 521,602,215.40-782,403,323.10-158,049,332.20

Finding the Fourth Proportional to 521,602,215.40, 782,403,323.10 and 158,049,332.20

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Solution

The fourth proportional to 521,602,215.40, 782,403,323.10 and 158,049,332.20 is: 237,073,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,602,215.40 : 782,403,323.10 = 158,049,332.20 : x
  2. Step 2: Convert to fraction form
    521,602,215.40/782,403,323.10 = 158,049,332.20/x
  3. Step 3: Cross multiply
    521,602,215.40x = 782,403,323.10 × 158,049,332.20
  4. Step 4: Simplify right side
    521,602,215.40x = 123,658,322,727,015,824
  5. Step 5: Solve for x
    x = 123,658,322,727,015,824/521,602,215.40
  6. Step 6: Final answer
    x = 237,073,998.30

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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.