Home / 65,565,315.60-90,491,979.24-39,105,365.28

Finding the Fourth Proportional to 65,565,315.60, 90,491,979.24 and 39,105,365.28

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Solution

The fourth proportional to 65,565,315.60, 90,491,979.24 and 39,105,365.28 is: 53,972,468.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,565,315.60 : 90,491,979.24 = 39,105,365.28 : x
  2. Step 2: Convert to fraction form
    65,565,315.60/90,491,979.24 = 39,105,365.28/x
  3. Step 3: Cross multiply
    65,565,315.60x = 90,491,979.24 × 39,105,365.28
  4. Step 4: Simplify right side
    65,565,315.60x = 3,538,721,903,090,376.50
  5. Step 5: Solve for x
    x = 3,538,721,903,090,376.50/65,565,315.60
  6. Step 6: Final answer
    x = 53,972,468.08

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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.