Home / 13,145,739.13-18,141,127.69-7,344,520.87

Finding the Fourth Proportional to 13,145,739.13, 18,141,127.69 and 7,344,520.87

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Solution

The fourth proportional to 13,145,739.13, 18,141,127.69 and 7,344,520.87 is: 10,135,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145,739.13 : 18,141,127.69 = 7,344,520.87 : x
  2. Step 2: Convert to fraction form
    13,145,739.13/18,141,127.69 = 7,344,520.87/x
  3. Step 3: Cross multiply
    13,145,739.13x = 18,141,127.69 × 7,344,520.87
  4. Step 4: Simplify right side
    13,145,739.13x = 133,237,890,924,539.91
  5. Step 5: Solve for x
    x = 133,237,890,924,539.91/13,145,739.13
  6. Step 6: Final answer
    x = 10,135,443.10

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1.5x scale

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.