Home / 9,161,122.58-12,642,734.85-5,087,120.66

Finding the Fourth Proportional to 9,161,122.58, 12,642,734.85 and 5,087,120.66

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Solution

The fourth proportional to 9,161,122.58, 12,642,734.85 and 5,087,120.66 is: 7,020,440.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161,122.58 : 12,642,734.85 = 5,087,120.66 : x
  2. Step 2: Convert to fraction form
    9,161,122.58/12,642,734.85 = 5,087,120.66/x
  3. Step 3: Cross multiply
    9,161,122.58x = 12,642,734.85 × 5,087,120.66
  4. Step 4: Simplify right side
    9,161,122.58x = 64,315,117,654,337
  5. Step 5: Solve for x
    x = 64,315,117,654,337/9,161,122.58
  6. Step 6: Final answer
    x = 7,020,440.68

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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.