Home / 189,932,943.28-284,890,589.16-79,222,920.88

Finding the Fourth Proportional to 189,932,943.28, 284,890,589.16 and 79,222,920.88

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Solution

The fourth proportional to 189,932,943.28, 284,890,589.16 and 79,222,920.88 is: 118,830,700.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,932,943.28 : 284,890,589.16 = 79,222,920.88 : x
  2. Step 2: Convert to fraction form
    189,932,943.28/284,890,589.16 = 79,222,920.88/x
  3. Step 3: Cross multiply
    189,932,943.28x = 284,890,589.16 × 79,222,920.88
  4. Step 4: Simplify right side
    189,932,943.28x = 22,569,864,604,479,268
  5. Step 5: Solve for x
    x = 22,569,864,604,479,268/189,932,943.28
  6. Step 6: Final answer
    x = 118,830,700.01

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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.