Home / 48,462,187.72-66,885,057.30-31,078,162.12

Finding the Fourth Proportional to 48,462,187.72, 66,885,057.30 and 31,078,162.12

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Solution

The fourth proportional to 48,462,187.72, 66,885,057.30 and 31,078,162.12 is: 42,892,505.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,462,187.72 : 66,885,057.30 = 31,078,162.12 : x
  2. Step 2: Convert to fraction form
    48,462,187.72/66,885,057.30 = 31,078,162.12/x
  3. Step 3: Cross multiply
    48,462,187.72x = 66,885,057.30 × 31,078,162.12
  4. Step 4: Simplify right side
    48,462,187.72x = 2,078,664,654,174,889.50
  5. Step 5: Solve for x
    x = 2,078,664,654,174,889.50/48,462,187.72
  6. Step 6: Final answer
    x = 42,892,505.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.