Home / 81,192,632.20-121,788,948.30-63,973,943.80

Finding the Fourth Proportional to 81,192,632.20, 121,788,948.30 and 63,973,943.80

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Solution

The fourth proportional to 81,192,632.20, 121,788,948.30 and 63,973,943.80 is: 95,960,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,192,632.20 : 121,788,948.30 = 63,973,943.80 : x
  2. Step 2: Convert to fraction form
    81,192,632.20/121,788,948.30 = 63,973,943.80/x
  3. Step 3: Cross multiply
    81,192,632.20x = 121,788,948.30 × 63,973,943.80
  4. Step 4: Simplify right side
    81,192,632.20x = 7,791,319,334,005,305
  5. Step 5: Solve for x
    x = 7,791,319,334,005,305/81,192,632.20
  6. Step 6: Final answer
    x = 95,960,915.70

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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.