Home / 78,732,110.55-118,098,165.83-76,606,346.55

Finding the Fourth Proportional to 78,732,110.55, 118,098,165.83 and 76,606,346.55

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Solution

The fourth proportional to 78,732,110.55, 118,098,165.83 and 76,606,346.55 is: 114,909,519.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,110.55 : 118,098,165.83 = 76,606,346.55 : x
  2. Step 2: Convert to fraction form
    78,732,110.55/118,098,165.83 = 76,606,346.55/x
  3. Step 3: Cross multiply
    78,732,110.55x = 118,098,165.83 × 76,606,346.55
  4. Step 4: Simplify right side
    78,732,110.55x = 9,047,069,018,109,316
  5. Step 5: Solve for x
    x = 9,047,069,018,109,316/78,732,110.55
  6. Step 6: Final answer
    x = 114,909,519.83

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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.