Home / 79,678,873.65-109,955,352.47-48,736,769.97

Finding the Fourth Proportional to 79,678,873.65, 109,955,352.47 and 48,736,769.97

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Solution

The fourth proportional to 79,678,873.65, 109,955,352.47 and 48,736,769.97 is: 67,255,829.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,678,873.65 : 109,955,352.47 = 48,736,769.97 : x
  2. Step 2: Convert to fraction form
    79,678,873.65/109,955,352.47 = 48,736,769.97/x
  3. Step 3: Cross multiply
    79,678,873.65x = 109,955,352.47 × 48,736,769.97
  4. Step 4: Simplify right side
    79,678,873.65x = 5,358,868,720,056,978
  5. Step 5: Solve for x
    x = 5,358,868,720,056,978/79,678,873.65
  6. Step 6: Final answer
    x = 67,255,829.24

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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.