Home / 12,358,672.20-18,510,014.70-7,319,824.20

Finding the Fourth Proportional to 12,358,672.20, 18,510,014.70 and 7,319,824.20

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Solution

The fourth proportional to 12,358,672.20, 18,510,014.70 and 7,319,824.20 is: 10,963,156.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358,672.20 : 18,510,014.70 = 7,319,824.20 : x
  2. Step 2: Convert to fraction form
    12,358,672.20/18,510,014.70 = 7,319,824.20/x
  3. Step 3: Cross multiply
    12,358,672.20x = 18,510,014.70 × 7,319,824.20
  4. Step 4: Simplify right side
    12,358,672.20x = 135,490,053,543,415.73
  5. Step 5: Solve for x
    x = 135,490,053,543,415.73/12,358,672.20
  6. Step 6: Final answer
    x = 10,963,156.18

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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.