Home / 18,421,570.56-25,421,145.60-10,161,962.88

Finding the Fourth Proportional to 18,421,570.56, 25,421,145.60 and 10,161,962.88

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Solution

The fourth proportional to 18,421,570.56, 25,421,145.60 and 10,161,962.88 is: 14,023,165.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421,570.56 : 25,421,145.60 = 10,161,962.88 : x
  2. Step 2: Convert to fraction form
    18,421,570.56/25,421,145.60 = 10,161,962.88/x
  3. Step 3: Cross multiply
    18,421,570.56x = 25,421,145.60 × 10,161,962.88
  4. Step 4: Simplify right side
    18,421,570.56x = 258,328,737,954,275.38
  5. Step 5: Solve for x
    x = 258,328,737,954,275.38/18,421,570.56
  6. Step 6: Final answer
    x = 14,023,165.78

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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.