Home / 13,172,341.17-18,178,046.05-7,211,648.53

Finding the Fourth Proportional to 13,172,341.17, 18,178,046.05 and 7,211,648.53

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Solution

The fourth proportional to 13,172,341.17, 18,178,046.05 and 7,211,648.53 is: 9,952,192.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172,341.17 : 18,178,046.05 = 7,211,648.53 : x
  2. Step 2: Convert to fraction form
    13,172,341.17/18,178,046.05 = 7,211,648.53/x
  3. Step 3: Cross multiply
    13,172,341.17x = 18,178,046.05 × 7,211,648.53
  4. Step 4: Simplify right side
    13,172,341.17x = 131,093,679,074,754.81
  5. Step 5: Solve for x
    x = 131,093,679,074,754.81/13,172,341.17
  6. Step 6: Final answer
    x = 9,952,192.81

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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.