Home / 28,341,941.75-42,519,658.50-9,172,698.83

Finding the Fourth Proportional to 28,341,941.75, 42,519,658.50 and 9,172,698.83

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Solution

The fourth proportional to 28,341,941.75, 42,519,658.50 and 9,172,698.83 is: 13,761,231.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341,941.75 : 42,519,658.50 = 9,172,698.83 : x
  2. Step 2: Convert to fraction form
    28,341,941.75/42,519,658.50 = 9,172,698.83/x
  3. Step 3: Cross multiply
    28,341,941.75x = 42,519,658.50 × 9,172,698.83
  4. Step 4: Simplify right side
    28,341,941.75x = 390,020,021,774,949.56
  5. Step 5: Solve for x
    x = 390,020,021,774,949.56/28,341,941.75
  6. Step 6: Final answer
    x = 13,761,231.51

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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.