Home / 28,711,400.85-39,614,921.19-16,320,521.79

Finding the Fourth Proportional to 28,711,400.85, 39,614,921.19 and 16,320,521.79

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Solution

The fourth proportional to 28,711,400.85, 39,614,921.19 and 16,320,521.79 is: 22,518,447.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,711,400.85 : 39,614,921.19 = 16,320,521.79 : x
  2. Step 2: Convert to fraction form
    28,711,400.85/39,614,921.19 = 16,320,521.79/x
  3. Step 3: Cross multiply
    28,711,400.85x = 39,614,921.19 × 16,320,521.79
  4. Step 4: Simplify right side
    28,711,400.85x = 646,536,184,490,527.62
  5. Step 5: Solve for x
    x = 646,536,184,490,527.62/28,711,400.85
  6. Step 6: Final answer
    x = 22,518,447.91

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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.