Home / 78,081,377.64-107,752,311.18-43,276,315.08

Finding the Fourth Proportional to 78,081,377.64, 107,752,311.18 and 43,276,315.08

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Solution

The fourth proportional to 78,081,377.64, 107,752,311.18 and 43,276,315.08 is: 59,721,320.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,081,377.64 : 107,752,311.18 = 43,276,315.08 : x
  2. Step 2: Convert to fraction form
    78,081,377.64/107,752,311.18 = 43,276,315.08/x
  3. Step 3: Cross multiply
    78,081,377.64x = 107,752,311.18 × 43,276,315.08
  4. Step 4: Simplify right side
    78,081,377.64x = 4,663,122,969,223,887
  5. Step 5: Solve for x
    x = 4,663,122,969,223,887/78,081,377.64
  6. Step 6: Final answer
    x = 59,721,320.37

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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.