Home / 78,144,303.52-117,227,234.27-45,370,307.21

Finding the Fourth Proportional to 78,144,303.52, 117,227,234.27 and 45,370,307.21

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Solution

The fourth proportional to 78,144,303.52, 117,227,234.27 and 45,370,307.21 is: 68,061,719.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,144,303.52 : 117,227,234.27 = 45,370,307.21 : x
  2. Step 2: Convert to fraction form
    78,144,303.52/117,227,234.27 = 45,370,307.21/x
  3. Step 3: Cross multiply
    78,144,303.52x = 117,227,234.27 × 45,370,307.21
  4. Step 4: Simplify right side
    78,144,303.52x = 5,318,635,631,981,689
  5. Step 5: Solve for x
    x = 5,318,635,631,981,689/78,144,303.52
  6. Step 6: Final answer
    x = 68,061,719.06

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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.