Home / 78,507,085.52-117,811,016.40-38,095,524.56

Finding the Fourth Proportional to 78,507,085.52, 117,811,016.40 and 38,095,524.56

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Solution

The fourth proportional to 78,507,085.52, 117,811,016.40 and 38,095,524.56 is: 57,167,737.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,507,085.52 : 117,811,016.40 = 38,095,524.56 : x
  2. Step 2: Convert to fraction form
    78,507,085.52/117,811,016.40 = 38,095,524.56/x
  3. Step 3: Cross multiply
    78,507,085.52x = 117,811,016.40 × 38,095,524.56
  4. Step 4: Simplify right side
    78,507,085.52x = 4,488,072,468,704,763.50
  5. Step 5: Solve for x
    x = 4,488,072,468,704,763.50/78,507,085.52
  6. Step 6: Final answer
    x = 57,167,737.65

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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.