Home / 78,703,709,972.61-117,960,715,348.51-36,149,885,882.85

Finding the Fourth Proportional to 78,703,709,972.61, 117,960,715,348.51 and 36,149,885,882.85

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Solution

The fourth proportional to 78,703,709,972.61, 117,960,715,348.51 and 36,149,885,882.85 is: 54,181,262,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,703,709,972.61 : 117,960,715,348.51 = 36,149,885,882.85 : x
  2. Step 2: Convert to fraction form
    78,703,709,972.61/117,960,715,348.51 = 36,149,885,882.85/x
  3. Step 3: Cross multiply
    78,703,709,972.61x = 117,960,715,348.51 × 36,149,885,882.85
  4. Step 4: Simplify right side
    78,703,709,972.61x = 4,264,266,398,507,988,418,560
  5. Step 5: Solve for x
    x = 4,264,266,398,507,988,418,560/78,703,709,972.61
  6. Step 6: Final answer
    x = 54,181,262,865.40

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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.