Home / 81,330,297.47-121,999,707.27-61,929,951.50

Finding the Fourth Proportional to 81,330,297.47, 121,999,707.27 and 61,929,951.50

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Solution

The fourth proportional to 81,330,297.47, 121,999,707.27 and 61,929,951.50 is: 92,898,171.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,330,297.47 : 121,999,707.27 = 61,929,951.50 : x
  2. Step 2: Convert to fraction form
    81,330,297.47/121,999,707.27 = 61,929,951.50/x
  3. Step 3: Cross multiply
    81,330,297.47x = 121,999,707.27 × 61,929,951.50
  4. Step 4: Simplify right side
    81,330,297.47x = 7,555,435,954,506,326
  5. Step 5: Solve for x
    x = 7,555,435,954,506,326/81,330,297.47
  6. Step 6: Final answer
    x = 92,898,171.89

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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.