Home / 18,680,416.16-25,779,614.34-10,839,337.72

Finding the Fourth Proportional to 18,680,416.16, 25,779,614.34 and 10,839,337.72

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Solution

The fourth proportional to 18,680,416.16, 25,779,614.34 and 10,839,337.72 is: 14,958,657.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680,416.16 : 25,779,614.34 = 10,839,337.72 : x
  2. Step 2: Convert to fraction form
    18,680,416.16/25,779,614.34 = 10,839,337.72/x
  3. Step 3: Cross multiply
    18,680,416.16x = 25,779,614.34 × 10,839,337.72
  4. Step 4: Simplify right side
    18,680,416.16x = 279,433,946,098,813.38
  5. Step 5: Solve for x
    x = 279,433,946,098,813.38/18,680,416.16
  6. Step 6: Final answer
    x = 14,958,657.44

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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.