Home / 79,678,872.90-109,955,351.43-48,736,769.22

Finding the Fourth Proportional to 79,678,872.90, 109,955,351.43 and 48,736,769.22

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Solution

The fourth proportional to 79,678,872.90, 109,955,351.43 and 48,736,769.22 is: 67,255,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,678,872.90 : 109,955,351.43 = 48,736,769.22 : x
  2. Step 2: Convert to fraction form
    79,678,872.90/109,955,351.43 = 48,736,769.22/x
  3. Step 3: Cross multiply
    79,678,872.90x = 109,955,351.43 × 48,736,769.22
  4. Step 4: Simplify right side
    79,678,872.90x = 5,358,868,587,147,907
  5. Step 5: Solve for x
    x = 5,358,868,587,147,907/79,678,872.90
  6. Step 6: Final answer
    x = 67,255,828.20

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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.