Home / 28,700,237.20-39,596,391.22-18,392,643.76

Finding the Fourth Proportional to 28,700,237.20, 39,596,391.22 and 18,392,643.76

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Solution

The fourth proportional to 28,700,237.20, 39,596,391.22 and 18,392,643.76 is: 25,375,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,700,237.20 : 39,596,391.22 = 18,392,643.76 : x
  2. Step 2: Convert to fraction form
    28,700,237.20/39,596,391.22 = 18,392,643.76/x
  3. Step 3: Cross multiply
    28,700,237.20x = 39,596,391.22 × 18,392,643.76
  4. Step 4: Simplify right side
    28,700,237.20x = 728,282,317,891,051.88
  5. Step 5: Solve for x
    x = 728,282,317,891,051.88/28,700,237.20
  6. Step 6: Final answer
    x = 25,375,480.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.