Home / 65,867,001.18-90,866,653.65-39,753,171.42

Finding the Fourth Proportional to 65,867,001.18, 90,866,653.65 and 39,753,171.42

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Solution

The fourth proportional to 65,867,001.18, 90,866,653.65 and 39,753,171.42 is: 54,841,386.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,867,001.18 : 90,866,653.65 = 39,753,171.42 : x
  2. Step 2: Convert to fraction form
    65,867,001.18/90,866,653.65 = 39,753,171.42/x
  3. Step 3: Cross multiply
    65,867,001.18x = 90,866,653.65 × 39,753,171.42
  4. Step 4: Simplify right side
    65,867,001.18x = 3,612,237,658,910,219
  5. Step 5: Solve for x
    x = 3,612,237,658,910,219/65,867,001.18
  6. Step 6: Final answer
    x = 54,841,386.34

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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.