Home / 122,563,020-169,134,446.84-66,807,962.76

Finding the Fourth Proportional to 122,563,020, 169,134,446.84 and 66,807,962.76

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Solution

The fourth proportional to 122,563,020, 169,134,446.84 and 66,807,962.76 is: 92,193,614.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,563,020 : 169,134,446.84 = 66,807,962.76 : x
  2. Step 2: Convert to fraction form
    122,563,020/169,134,446.84 = 66,807,962.76/x
  3. Step 3: Cross multiply
    122,563,020x = 169,134,446.84 × 66,807,962.76
  4. Step 4: Simplify right side
    122,563,020x = 11,299,527,825,919,920
  5. Step 5: Solve for x
    x = 11,299,527,825,919,920/122,563,020
  6. Step 6: Final answer
    x = 92,193,614.57

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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.