Home / 127,876,744.32-176,483,582.91-78,349,986.06

Finding the Fourth Proportional to 127,876,744.32, 176,483,582.91 and 78,349,986.06

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Solution

The fourth proportional to 127,876,744.32, 176,483,582.91 and 78,349,986.06 is: 108,131,359.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,876,744.32 : 176,483,582.91 = 78,349,986.06 : x
  2. Step 2: Convert to fraction form
    127,876,744.32/176,483,582.91 = 78,349,986.06/x
  3. Step 3: Cross multiply
    127,876,744.32x = 176,483,582.91 × 78,349,986.06
  4. Step 4: Simplify right side
    127,876,744.32x = 13,827,486,260,817,354
  5. Step 5: Solve for x
    x = 13,827,486,260,817,354/127,876,744.32
  6. Step 6: Final answer
    x = 108,131,359.88

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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.