Home / 18,502,709.76-25,534,041.80-10,129,939.86

Finding the Fourth Proportional to 18,502,709.76, 25,534,041.80 and 10,129,939.86

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Solution

The fourth proportional to 18,502,709.76, 25,534,041.80 and 10,129,939.86 is: 13,979,482.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502,709.76 : 25,534,041.80 = 10,129,939.86 : x
  2. Step 2: Convert to fraction form
    18,502,709.76/25,534,041.80 = 10,129,939.86/x
  3. Step 3: Cross multiply
    18,502,709.76x = 25,534,041.80 × 10,129,939.86
  4. Step 4: Simplify right side
    18,502,709.76x = 258,658,307,816,726.12
  5. Step 5: Solve for x
    x = 258,658,307,816,726.12/18,502,709.76
  6. Step 6: Final answer
    x = 13,979,482.53

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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.