Home / 103,519,909.20-155,147,987.70-55,020,997.20

Finding the Fourth Proportional to 103,519,909.20, 155,147,987.70 and 55,020,997.20

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Solution

The fourth proportional to 103,519,909.20, 155,147,987.70 and 55,020,997.20 is: 82,461,403.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,519,909.20 : 155,147,987.70 = 55,020,997.20 : x
  2. Step 2: Convert to fraction form
    103,519,909.20/155,147,987.70 = 55,020,997.20/x
  3. Step 3: Cross multiply
    103,519,909.20x = 155,147,987.70 × 55,020,997.20
  4. Step 4: Simplify right side
    103,519,909.20x = 8,536,396,996,827,334
  5. Step 5: Solve for x
    x = 8,536,396,996,827,334/103,519,909.20
  6. Step 6: Final answer
    x = 82,461,403.44

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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.