Home / 78,788,339,921.10-118,189,775,089.98-25,729,651,117.56

Finding the Fourth Proportional to 78,788,339,921.10, 118,189,775,089.98 and 25,729,651,117.56

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Solution

The fourth proportional to 78,788,339,921.10, 118,189,775,089.98 and 25,729,651,117.56 is: 38,596,849,251.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,788,339,921.10 : 118,189,775,089.98 = 25,729,651,117.56 : x
  2. Step 2: Convert to fraction form
    78,788,339,921.10/118,189,775,089.98 = 25,729,651,117.56/x
  3. Step 3: Cross multiply
    78,788,339,921.10x = 118,189,775,089.98 × 25,729,651,117.56
  4. Step 4: Simplify right side
    78,788,339,921.10x = 3,040,981,678,728,069,251,072
  5. Step 5: Solve for x
    x = 3,040,981,678,728,069,251,072/78,788,339,921.10
  6. Step 6: Final answer
    x = 38,596,849,251.72

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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.