Home / 28,496,478.80-42,748,865.40-9,322,590.80

Finding the Fourth Proportional to 28,496,478.80, 42,748,865.40 and 9,322,590.80

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Solution

The fourth proportional to 28,496,478.80, 42,748,865.40 and 9,322,590.80 is: 13,985,242.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,496,478.80 : 42,748,865.40 = 9,322,590.80 : x
  2. Step 2: Convert to fraction form
    28,496,478.80/42,748,865.40 = 9,322,590.80/x
  3. Step 3: Cross multiply
    28,496,478.80x = 42,748,865.40 × 9,322,590.80
  4. Step 4: Simplify right side
    28,496,478.80x = 398,530,179,288,478.31
  5. Step 5: Solve for x
    x = 398,530,179,288,478.31/28,496,478.80
  6. Step 6: Final answer
    x = 13,985,242.95

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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.