Home / 18,502,720.68-25,534,056.92-10,129,950.80

Finding the Fourth Proportional to 18,502,720.68, 25,534,056.92 and 10,129,950.80

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Solution

The fourth proportional to 18,502,720.68, 25,534,056.92 and 10,129,950.80 is: 13,979,497.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502,720.68 : 25,534,056.92 = 10,129,950.80 : x
  2. Step 2: Convert to fraction form
    18,502,720.68/25,534,056.92 = 10,129,950.80/x
  3. Step 3: Cross multiply
    18,502,720.68x = 25,534,056.92 × 10,129,950.80
  4. Step 4: Simplify right side
    18,502,720.68x = 258,658,740,145,679.50
  5. Step 5: Solve for x
    x = 258,658,740,145,679.50/18,502,720.68
  6. Step 6: Final answer
    x = 13,979,497.64

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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.