Home / 12,681,423.60-19,008,138.60-7,005,721.20

Finding the Fourth Proportional to 12,681,423.60, 19,008,138.60 and 7,005,721.20

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Solution

The fourth proportional to 12,681,423.60, 19,008,138.60 and 7,005,721.20 is: 10,500,849.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,681,423.60 : 19,008,138.60 = 7,005,721.20 : x
  2. Step 2: Convert to fraction form
    12,681,423.60/19,008,138.60 = 7,005,721.20/x
  3. Step 3: Cross multiply
    12,681,423.60x = 19,008,138.60 × 7,005,721.20
  4. Step 4: Simplify right side
    12,681,423.60x = 133,165,719,562,558.33
  5. Step 5: Solve for x
    x = 133,165,719,562,558.33/12,681,423.60
  6. Step 6: Final answer
    x = 10,500,849.41

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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.