Home / 107,812,309.80-161,739,459.90-31,137,839.40

Finding the Fourth Proportional to 107,812,309.80, 161,739,459.90 and 31,137,839.40

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Solution

The fourth proportional to 107,812,309.80, 161,739,459.90 and 31,137,839.40 is: 46,712,822.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,812,309.80 : 161,739,459.90 = 31,137,839.40 : x
  2. Step 2: Convert to fraction form
    107,812,309.80/161,739,459.90 = 31,137,839.40/x
  3. Step 3: Cross multiply
    107,812,309.80x = 161,739,459.90 × 31,137,839.40
  4. Step 4: Simplify right side
    107,812,309.80x = 5,036,217,327,008,940
  5. Step 5: Solve for x
    x = 5,036,217,327,008,940/107,812,309.80
  6. Step 6: Final answer
    x = 46,712,822.83

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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.