Home / 81,429,437.40-122,144,156.10-49,117,824.60

Finding the Fourth Proportional to 81,429,437.40, 122,144,156.10 and 49,117,824.60

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Solution

The fourth proportional to 81,429,437.40, 122,144,156.10 and 49,117,824.60 is: 73,676,736.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,429,437.40 : 122,144,156.10 = 49,117,824.60 : x
  2. Step 2: Convert to fraction form
    81,429,437.40/122,144,156.10 = 49,117,824.60/x
  3. Step 3: Cross multiply
    81,429,437.40x = 122,144,156.10 × 49,117,824.60
  4. Step 4: Simplify right side
    81,429,437.40x = 5,999,455,235,234,820
  5. Step 5: Solve for x
    x = 5,999,455,235,234,820/81,429,437.40
  6. Step 6: Final answer
    x = 73,676,736.90

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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.