Home / 15,348,462.74-21,178,868.46-9,154,236.42

Finding the Fourth Proportional to 15,348,462.74, 21,178,868.46 and 9,154,236.42

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Solution

The fourth proportional to 15,348,462.74, 21,178,868.46 and 9,154,236.42 is: 12,631,647.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348,462.74 : 21,178,868.46 = 9,154,236.42 : x
  2. Step 2: Convert to fraction form
    15,348,462.74/21,178,868.46 = 9,154,236.42/x
  3. Step 3: Cross multiply
    15,348,462.74x = 21,178,868.46 × 9,154,236.42
  4. Step 4: Simplify right side
    15,348,462.74x = 193,876,368,990,921.31
  5. Step 5: Solve for x
    x = 193,876,368,990,921.31/15,348,462.74
  6. Step 6: Final answer
    x = 12,631,647.37

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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.