Home / 78,703,709,973.61-117,960,715,350.01-36,149,885,883.85

Finding the Fourth Proportional to 78,703,709,973.61, 117,960,715,350.01 and 36,149,885,883.85

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Solution

The fourth proportional to 78,703,709,973.61, 117,960,715,350.01 and 36,149,885,883.85 is: 54,181,262,866.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,703,709,973.61 : 117,960,715,350.01 = 36,149,885,883.85 : x
  2. Step 2: Convert to fraction form
    78,703,709,973.61/117,960,715,350.01 = 36,149,885,883.85/x
  3. Step 3: Cross multiply
    78,703,709,973.61x = 117,960,715,350.01 × 36,149,885,883.85
  4. Step 4: Simplify right side
    78,703,709,973.61x = 4,264,266,398,680,174,034,944
  5. Step 5: Solve for x
    x = 4,264,266,398,680,174,034,944/78,703,709,973.61
  6. Step 6: Final answer
    x = 54,181,262,866.90

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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.