Home / 78,755,029.60-118,132,544.40-51,013,809.40

Finding the Fourth Proportional to 78,755,029.60, 118,132,544.40 and 51,013,809.40

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Solution

The fourth proportional to 78,755,029.60, 118,132,544.40 and 51,013,809.40 is: 76,520,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,755,029.60 : 118,132,544.40 = 51,013,809.40 : x
  2. Step 2: Convert to fraction form
    78,755,029.60/118,132,544.40 = 51,013,809.40/x
  3. Step 3: Cross multiply
    78,755,029.60x = 118,132,544.40 × 51,013,809.40
  4. Step 4: Simplify right side
    78,755,029.60x = 6,026,391,103,958,637
  5. Step 5: Solve for x
    x = 6,026,391,103,958,637/78,755,029.60
  6. Step 6: Final answer
    x = 76,520,714.10

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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.