Home / 151,715,000.70-209,366,700.89-82,100,381.49

Finding the Fourth Proportional to 151,715,000.70, 209,366,700.89 and 82,100,381.49

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Solution

The fourth proportional to 151,715,000.70, 209,366,700.89 and 82,100,381.49 is: 113,298,526.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,715,000.70 : 209,366,700.89 = 82,100,381.49 : x
  2. Step 2: Convert to fraction form
    151,715,000.70/209,366,700.89 = 82,100,381.49/x
  3. Step 3: Cross multiply
    151,715,000.70x = 209,366,700.89 × 82,100,381.49
  4. Step 4: Simplify right side
    151,715,000.70x = 17,189,086,013,961,218
  5. Step 5: Solve for x
    x = 17,189,086,013,961,218/151,715,000.70
  6. Step 6: Final answer
    x = 113,298,526.41

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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.