Home / 12,989,537.52-17,925,596.67-7,188,719.28

Finding the Fourth Proportional to 12,989,537.52, 17,925,596.67 and 7,188,719.28

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Solution

The fourth proportional to 12,989,537.52, 17,925,596.67 and 7,188,719.28 is: 9,920,451.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,989,537.52 : 17,925,596.67 = 7,188,719.28 : x
  2. Step 2: Convert to fraction form
    12,989,537.52/17,925,596.67 = 7,188,719.28/x
  3. Step 3: Cross multiply
    12,989,537.52x = 17,925,596.67 × 7,188,719.28
  4. Step 4: Simplify right side
    12,989,537.52x = 128,862,082,387,132.81
  5. Step 5: Solve for x
    x = 128,862,082,387,132.81/12,989,537.52
  6. Step 6: Final answer
    x = 9,920,451.92

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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.