Home / 12,574,443.78-18,868,984.83-5,287,376.82

Finding the Fourth Proportional to 12,574,443.78, 18,868,984.83 and 5,287,376.82

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Solution

The fourth proportional to 12,574,443.78, 18,868,984.83 and 5,287,376.82 is: 7,934,142.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574,443.78 : 18,868,984.83 = 5,287,376.82 : x
  2. Step 2: Convert to fraction form
    12,574,443.78/18,868,984.83 = 5,287,376.82/x
  3. Step 3: Cross multiply
    12,574,443.78x = 18,868,984.83 × 5,287,376.82
  4. Step 4: Simplify right side
    12,574,443.78x = 99,767,433,007,073.64
  5. Step 5: Solve for x
    x = 99,767,433,007,073.64/12,574,443.78
  6. Step 6: Final answer
    x = 7,934,142.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.