Home / 18,680,420.64-28,028,722.88-10,034,432.64

Finding the Fourth Proportional to 18,680,420.64, 28,028,722.88 and 10,034,432.64

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Solution

The fourth proportional to 18,680,420.64, 28,028,722.88 and 10,034,432.64 is: 15,055,995.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680,420.64 : 28,028,722.88 = 10,034,432.64 : x
  2. Step 2: Convert to fraction form
    18,680,420.64/28,028,722.88 = 10,034,432.64/x
  3. Step 3: Cross multiply
    18,680,420.64x = 28,028,722.88 × 10,034,432.64
  4. Step 4: Simplify right side
    18,680,420.64x = 281,252,331,724,586.81
  5. Step 5: Solve for x
    x = 281,252,331,724,586.81/18,680,420.64
  6. Step 6: Final answer
    x = 15,055,995.64

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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.