Home / 5,429,046.72-8,143,565.44-1,385,534.21

Finding the Fourth Proportional to 5,429,046.72, 8,143,565.44 and 1,385,534.21

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Solution

The fourth proportional to 5,429,046.72, 8,143,565.44 and 1,385,534.21 is: 2,078,300.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,046.72 : 8,143,565.44 = 1,385,534.21 : x
  2. Step 2: Convert to fraction form
    5,429,046.72/8,143,565.44 = 1,385,534.21/x
  3. Step 3: Cross multiply
    5,429,046.72x = 8,143,565.44 × 1,385,534.21
  4. Step 4: Simplify right side
    5,429,046.72x = 11,283,188,501,566.03
  5. Step 5: Solve for x
    x = 11,283,188,501,566.03/5,429,046.72
  6. Step 6: Final answer
    x = 2,078,300.13

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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.