Home / 99,902,953.60-149,779,780.80-54,515,996.80

Finding the Fourth Proportional to 99,902,953.60, 149,779,780.80 and 54,515,996.80

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Solution

The fourth proportional to 99,902,953.60, 149,779,780.80 and 54,515,996.80 is: 81,733,259.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,902,953.60 : 149,779,780.80 = 54,515,996.80 : x
  2. Step 2: Convert to fraction form
    99,902,953.60/149,779,780.80 = 54,515,996.80/x
  3. Step 3: Cross multiply
    99,902,953.60x = 149,779,780.80 × 54,515,996.80
  4. Step 4: Simplify right side
    99,902,953.60x = 8,165,394,050,797,502
  5. Step 5: Solve for x
    x = 8,165,394,050,797,502/99,902,953.60
  6. Step 6: Final answer
    x = 81,733,259.69

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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.