Home / 78,379,677.18-117,503,749.89-34,653,376.08

Finding the Fourth Proportional to 78,379,677.18, 117,503,749.89 and 34,653,376.08

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Solution

The fourth proportional to 78,379,677.18, 117,503,749.89 and 34,653,376.08 is: 51,950,987.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,379,677.18 : 117,503,749.89 = 34,653,376.08 : x
  2. Step 2: Convert to fraction form
    78,379,677.18/117,503,749.89 = 34,653,376.08/x
  3. Step 3: Cross multiply
    78,379,677.18x = 117,503,749.89 × 34,653,376.08
  4. Step 4: Simplify right side
    78,379,677.18x = 4,071,901,635,748,428.50
  5. Step 5: Solve for x
    x = 4,071,901,635,748,428.50/78,379,677.18
  6. Step 6: Final answer
    x = 51,950,987.58

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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.