Home / 20,160,031.20-30,240,046.80-18,406,275.90

Finding the Fourth Proportional to 20,160,031.20, 30,240,046.80 and 18,406,275.90

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Solution

The fourth proportional to 20,160,031.20, 30,240,046.80 and 18,406,275.90 is: 27,609,413.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,031.20 : 30,240,046.80 = 18,406,275.90 : x
  2. Step 2: Convert to fraction form
    20,160,031.20/30,240,046.80 = 18,406,275.90/x
  3. Step 3: Cross multiply
    20,160,031.20x = 30,240,046.80 × 18,406,275.90
  4. Step 4: Simplify right side
    20,160,031.20x = 556,606,644,629,712.06
  5. Step 5: Solve for x
    x = 556,606,644,629,712.06/20,160,031.20
  6. Step 6: Final answer
    x = 27,609,413.85

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1.5x scale

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.