Home / 71,754,431.20-107,665,239.60-31,359,666.40

Finding the Fourth Proportional to 71,754,431.20, 107,665,239.60 and 31,359,666.40

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Solution

The fourth proportional to 71,754,431.20, 107,665,239.60 and 31,359,666.40 is: 47,054,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,754,431.20 : 107,665,239.60 = 31,359,666.40 : x
  2. Step 2: Convert to fraction form
    71,754,431.20/107,665,239.60 = 31,359,666.40/x
  3. Step 3: Cross multiply
    71,754,431.20x = 107,665,239.60 × 31,359,666.40
  4. Step 4: Simplify right side
    71,754,431.20x = 3,376,345,996,732,069
  5. Step 5: Solve for x
    x = 3,376,345,996,732,069/71,754,431.20
  6. Step 6: Final answer
    x = 47,054,181.05

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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.