Home / 12,390,478.56-17,099,074.80-7,234,057.44

Finding the Fourth Proportional to 12,390,478.56, 17,099,074.80 and 7,234,057.44

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Solution

The fourth proportional to 12,390,478.56, 17,099,074.80 and 7,234,057.44 is: 9,983,124.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390,478.56 : 17,099,074.80 = 7,234,057.44 : x
  2. Step 2: Convert to fraction form
    12,390,478.56/17,099,074.80 = 7,234,057.44/x
  3. Step 3: Cross multiply
    12,390,478.56x = 17,099,074.80 × 7,234,057.44
  4. Step 4: Simplify right side
    12,390,478.56x = 123,695,689,274,056.53
  5. Step 5: Solve for x
    x = 123,695,689,274,056.53/12,390,478.56
  6. Step 6: Final answer
    x = 9,983,124.44

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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.