Home / 5,429,051.23-8,143,572.16-1,385,538.72

Finding the Fourth Proportional to 5,429,051.23, 8,143,572.16 and 1,385,538.72

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Solution

The fourth proportional to 5,429,051.23, 8,143,572.16 and 1,385,538.72 is: 2,078,306.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,051.23 : 8,143,572.16 = 1,385,538.72 : x
  2. Step 2: Convert to fraction form
    5,429,051.23/8,143,572.16 = 1,385,538.72/x
  3. Step 3: Cross multiply
    5,429,051.23x = 8,143,572.16 × 1,385,538.72
  4. Step 4: Simplify right side
    5,429,051.23x = 11,283,234,546,794.04
  5. Step 5: Solve for x
    x = 11,283,234,546,794.04/5,429,051.23
  6. Step 6: Final answer
    x = 2,078,306.88

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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.