Home / 10,369,639.20-15,554,458.80-9,921,741.60

Finding the Fourth Proportional to 10,369,639.20, 15,554,458.80 and 9,921,741.60

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Solution

The fourth proportional to 10,369,639.20, 15,554,458.80 and 9,921,741.60 is: 14,882,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,369,639.20 : 15,554,458.80 = 9,921,741.60 : x
  2. Step 2: Convert to fraction form
    10,369,639.20/15,554,458.80 = 9,921,741.60/x
  3. Step 3: Cross multiply
    10,369,639.20x = 15,554,458.80 × 9,921,741.60
  4. Step 4: Simplify right side
    10,369,639.20x = 154,327,320,941,446.09
  5. Step 5: Solve for x
    x = 154,327,320,941,446.09/10,369,639.20
  6. Step 6: Final answer
    x = 14,882,612.40

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1.5x scale

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.