Home / 129,016,823.20-193,525,234.80-38,140,412.20

Finding the Fourth Proportional to 129,016,823.20, 193,525,234.80 and 38,140,412.20

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Solution

The fourth proportional to 129,016,823.20, 193,525,234.80 and 38,140,412.20 is: 57,210,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,016,823.20 : 193,525,234.80 = 38,140,412.20 : x
  2. Step 2: Convert to fraction form
    129,016,823.20/193,525,234.80 = 38,140,412.20/x
  3. Step 3: Cross multiply
    129,016,823.20x = 193,525,234.80 × 38,140,412.20
  4. Step 4: Simplify right side
    129,016,823.20x = 7,381,132,226,373,786
  5. Step 5: Solve for x
    x = 7,381,132,226,373,786/129,016,823.20
  6. Step 6: Final answer
    x = 57,210,618.30

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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.