Home / 20,160,034.20-30,240,051.30-18,406,278.90

Finding the Fourth Proportional to 20,160,034.20, 30,240,051.30 and 18,406,278.90

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Solution

The fourth proportional to 20,160,034.20, 30,240,051.30 and 18,406,278.90 is: 27,609,418.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,034.20 : 30,240,051.30 = 18,406,278.90 : x
  2. Step 2: Convert to fraction form
    20,160,034.20/30,240,051.30 = 18,406,278.90/x
  3. Step 3: Cross multiply
    20,160,034.20x = 30,240,051.30 × 18,406,278.90
  4. Step 4: Simplify right side
    20,160,034.20x = 556,606,818,178,107.56
  5. Step 5: Solve for x
    x = 556,606,818,178,107.56/20,160,034.20
  6. Step 6: Final answer
    x = 27,609,418.35

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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.