Home / 84,227,985.60-126,436,456.80-65,143,348.80

Finding the Fourth Proportional to 84,227,985.60, 126,436,456.80 and 65,143,348.80

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Solution

The fourth proportional to 84,227,985.60, 126,436,456.80 and 65,143,348.80 is: 97,788,094.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,227,985.60 : 126,436,456.80 = 65,143,348.80 : x
  2. Step 2: Convert to fraction form
    84,227,985.60/126,436,456.80 = 65,143,348.80/x
  3. Step 3: Cross multiply
    84,227,985.60x = 126,436,456.80 × 65,143,348.80
  4. Step 4: Simplify right side
    84,227,985.60x = 8,236,494,206,358,531
  5. Step 5: Solve for x
    x = 8,236,494,206,358,531/84,227,985.60
  6. Step 6: Final answer
    x = 97,788,094.39

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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.