Home / 78,345,248.48-108,002,495.70-54,750,531.08

Finding the Fourth Proportional to 78,345,248.48, 108,002,495.70 and 54,750,531.08

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Solution

The fourth proportional to 78,345,248.48, 108,002,495.70 and 54,750,531.08 is: 75,476,102.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,345,248.48 : 108,002,495.70 = 54,750,531.08 : x
  2. Step 2: Convert to fraction form
    78,345,248.48/108,002,495.70 = 54,750,531.08/x
  3. Step 3: Cross multiply
    78,345,248.48x = 108,002,495.70 × 54,750,531.08
  4. Step 4: Simplify right side
    78,345,248.48x = 5,913,193,997,540,416
  5. Step 5: Solve for x
    x = 5,913,193,997,540,416/78,345,248.48
  6. Step 6: Final answer
    x = 75,476,102.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.