Home / 129,316,828.88-194,011,635-56,540,000.72

Finding the Fourth Proportional to 129,316,828.88, 194,011,635 and 56,540,000.72

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Solution

The fourth proportional to 129,316,828.88, 194,011,635 and 56,540,000.72 is: 84,825,912.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,316,828.88 : 194,011,635 = 56,540,000.72 : x
  2. Step 2: Convert to fraction form
    129,316,828.88/194,011,635 = 56,540,000.72/x
  3. Step 3: Cross multiply
    129,316,828.88x = 194,011,635 × 56,540,000.72
  4. Step 4: Simplify right side
    129,316,828.88x = 10,969,417,982,588,376
  5. Step 5: Solve for x
    x = 10,969,417,982,588,376/129,316,828.88
  6. Step 6: Final answer
    x = 84,825,912.28

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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.