Home / 122,566,897.52-169,142,239.20-66,812,424.56

Finding the Fourth Proportional to 122,566,897.52, 169,142,239.20 and 66,812,424.56

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Solution

The fourth proportional to 122,566,897.52, 169,142,239.20 and 66,812,424.56 is: 92,201,102.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,566,897.52 : 169,142,239.20 = 66,812,424.56 : x
  2. Step 2: Convert to fraction form
    122,566,897.52/169,142,239.20 = 66,812,424.56/x
  3. Step 3: Cross multiply
    122,566,897.52x = 169,142,239.20 × 66,812,424.56
  4. Step 4: Simplify right side
    122,566,897.52x = 11,300,803,096,459,474
  5. Step 5: Solve for x
    x = 11,300,803,096,459,474/122,566,897.52
  6. Step 6: Final answer
    x = 92,201,102.62

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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.