Home / 38,423,432.43-53,025,589.96-21,019,777.65

Finding the Fourth Proportional to 38,423,432.43, 53,025,589.96 and 21,019,777.65

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Solution

The fourth proportional to 38,423,432.43, 53,025,589.96 and 21,019,777.65 is: 29,007,978.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,423,432.43 : 53,025,589.96 = 21,019,777.65 : x
  2. Step 2: Convert to fraction form
    38,423,432.43/53,025,589.96 = 21,019,777.65/x
  3. Step 3: Cross multiply
    38,423,432.43x = 53,025,589.96 × 21,019,777.65
  4. Step 4: Simplify right side
    38,423,432.43x = 1,114,586,110,666,723
  5. Step 5: Solve for x
    x = 1,114,586,110,666,723/38,423,432.43
  6. Step 6: Final answer
    x = 29,007,978.73

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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.