Home / 168,347,279.20-252,520,918.80-77,648,015.20

Finding the Fourth Proportional to 168,347,279.20, 252,520,918.80 and 77,648,015.20

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Solution

The fourth proportional to 168,347,279.20, 252,520,918.80 and 77,648,015.20 is: 116,472,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,347,279.20 : 252,520,918.80 = 77,648,015.20 : x
  2. Step 2: Convert to fraction form
    168,347,279.20/252,520,918.80 = 77,648,015.20/x
  3. Step 3: Cross multiply
    168,347,279.20x = 252,520,918.80 × 77,648,015.20
  4. Step 4: Simplify right side
    168,347,279.20x = 19,607,748,141,300,368
  5. Step 5: Solve for x
    x = 19,607,748,141,300,368/168,347,279.20
  6. Step 6: Final answer
    x = 116,472,022.80

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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.