Home / 78,802,219.64-118,275,990.78-39,967,926.92

Finding the Fourth Proportional to 78,802,219.64, 118,275,990.78 and 39,967,926.92

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Solution

The fourth proportional to 78,802,219.64, 118,275,990.78 and 39,967,926.92 is: 59,988,743.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,802,219.64 : 118,275,990.78 = 39,967,926.92 : x
  2. Step 2: Convert to fraction form
    78,802,219.64/118,275,990.78 = 39,967,926.92/x
  3. Step 3: Cross multiply
    78,802,219.64x = 118,275,990.78 × 39,967,926.92
  4. Step 4: Simplify right side
    78,802,219.64x = 4,727,246,155,885,634
  5. Step 5: Solve for x
    x = 4,727,246,155,885,634/78,802,219.64
  6. Step 6: Final answer
    x = 59,988,743.69

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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.