Home / 12,431,880.19-17,156,171.81-7,134,437.55

Finding the Fourth Proportional to 12,431,880.19, 17,156,171.81 and 7,134,437.55

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Solution

The fourth proportional to 12,431,880.19, 17,156,171.81 and 7,134,437.55 is: 9,845,625.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431,880.19 : 17,156,171.81 = 7,134,437.55 : x
  2. Step 2: Convert to fraction form
    12,431,880.19/17,156,171.81 = 7,134,437.55/x
  3. Step 3: Cross multiply
    12,431,880.19x = 17,156,171.81 × 7,134,437.55
  4. Step 4: Simplify right side
    12,431,880.19x = 122,399,636,384,356.20
  5. Step 5: Solve for x
    x = 122,399,636,384,356.20/12,431,880.19
  6. Step 6: Final answer
    x = 9,845,625.48

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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.