Home / 77,031,630.57-106,241,665.91-67,719,289.59

Finding the Fourth Proportional to 77,031,630.57, 106,241,665.91 and 67,719,289.59

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Solution

The fourth proportional to 77,031,630.57, 106,241,665.91 and 67,719,289.59 is: 93,398,128.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,031,630.57 : 106,241,665.91 = 67,719,289.59 : x
  2. Step 2: Convert to fraction form
    77,031,630.57/106,241,665.91 = 67,719,289.59/x
  3. Step 3: Cross multiply
    77,031,630.57x = 106,241,665.91 × 67,719,289.59
  4. Step 4: Simplify right side
    77,031,630.57x = 7,194,610,139,944,725
  5. Step 5: Solve for x
    x = 7,194,610,139,944,725/77,031,630.57
  6. Step 6: Final answer
    x = 93,398,128.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.