Home / 12,431,717.28-17,156,558.52-7,537,408.20

Finding the Fourth Proportional to 12,431,717.28, 17,156,558.52 and 7,537,408.20

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Solution

The fourth proportional to 12,431,717.28, 17,156,558.52 and 7,537,408.20 is: 10,402,101.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431,717.28 : 17,156,558.52 = 7,537,408.20 : x
  2. Step 2: Convert to fraction form
    12,431,717.28/17,156,558.52 = 7,537,408.20/x
  3. Step 3: Cross multiply
    12,431,717.28x = 17,156,558.52 × 7,537,408.20
  4. Step 4: Simplify right side
    12,431,717.28x = 129,315,984,872,427.86
  5. Step 5: Solve for x
    x = 129,315,984,872,427.86/12,431,717.28
  6. Step 6: Final answer
    x = 10,402,101.49

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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.