Home / 81,255,942.81-121,812,167.79-62,171,896.50

Finding the Fourth Proportional to 81,255,942.81, 121,812,167.79 and 62,171,896.50

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Solution

The fourth proportional to 81,255,942.81, 121,812,167.79 and 62,171,896.50 is: 93,202,948.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,255,942.81 : 121,812,167.79 = 62,171,896.50 : x
  2. Step 2: Convert to fraction form
    81,255,942.81/121,812,167.79 = 62,171,896.50/x
  3. Step 3: Cross multiply
    81,255,942.81x = 121,812,167.79 × 62,171,896.50
  4. Step 4: Simplify right side
    81,255,942.81x = 7,573,293,488,280,514
  5. Step 5: Solve for x
    x = 7,573,293,488,280,514/81,255,942.81
  6. Step 6: Final answer
    x = 93,202,948.93

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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.