Home / 13,140,017.38-18,131,432.52-7,338,059.56

Finding the Fourth Proportional to 13,140,017.38, 18,131,432.52 and 7,338,059.56

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Solution

The fourth proportional to 13,140,017.38, 18,131,432.52 and 7,338,059.56 is: 10,125,521.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140,017.38 : 18,131,432.52 = 7,338,059.56 : x
  2. Step 2: Convert to fraction form
    13,140,017.38/18,131,432.52 = 7,338,059.56/x
  3. Step 3: Cross multiply
    13,140,017.38x = 18,131,432.52 × 7,338,059.56
  4. Step 4: Simplify right side
    13,140,017.38x = 133,049,531,739,880.88
  5. Step 5: Solve for x
    x = 133,049,531,739,880.88/13,140,017.38
  6. Step 6: Final answer
    x = 10,125,521.75

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1.5x scale

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.