Home / 78,703,709,972.86-117,960,715,348.89-36,149,885,883.10

Finding the Fourth Proportional to 78,703,709,972.86, 117,960,715,348.89 and 36,149,885,883.10

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Solution

The fourth proportional to 78,703,709,972.86, 117,960,715,348.89 and 36,149,885,883.10 is: 54,181,262,865.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,703,709,972.86 : 117,960,715,348.89 = 36,149,885,883.10 : x
  2. Step 2: Convert to fraction form
    78,703,709,972.86/117,960,715,348.89 = 36,149,885,883.10/x
  3. Step 3: Cross multiply
    78,703,709,972.86x = 117,960,715,348.89 × 36,149,885,883.10
  4. Step 4: Simplify right side
    78,703,709,972.86x = 4,264,266,398,551,215,964,160
  5. Step 5: Solve for x
    x = 4,264,266,398,551,215,964,160/78,703,709,972.86
  6. Step 6: Final answer
    x = 54,181,262,865.77

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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.