Home / 168,237,139.20-252,379,328.40-53,209,687.20

Finding the Fourth Proportional to 168,237,139.20, 252,379,328.40 and 53,209,687.20

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Solution

The fourth proportional to 168,237,139.20, 252,379,328.40 and 53,209,687.20 is: 79,822,001.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,237,139.20 : 252,379,328.40 = 53,209,687.20 : x
  2. Step 2: Convert to fraction form
    168,237,139.20/252,379,328.40 = 53,209,687.20/x
  3. Step 3: Cross multiply
    168,237,139.20x = 252,379,328.40 × 53,209,687.20
  4. Step 4: Simplify right side
    168,237,139.20x = 13,429,025,119,910,078
  5. Step 5: Solve for x
    x = 13,429,025,119,910,078/168,237,139.20
  6. Step 6: Final answer
    x = 79,822,001.16

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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.