Home / 290,412,000.30-435,618,000.45-187,619,501.10

Finding the Fourth Proportional to 290,412,000.30, 435,618,000.45 and 187,619,501.10

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Solution

The fourth proportional to 290,412,000.30, 435,618,000.45 and 187,619,501.10 is: 281,429,251.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,412,000.30 : 435,618,000.45 = 187,619,501.10 : x
  2. Step 2: Convert to fraction form
    290,412,000.30/435,618,000.45 = 187,619,501.10/x
  3. Step 3: Cross multiply
    290,412,000.30x = 435,618,000.45 × 187,619,501.10
  4. Step 4: Simplify right side
    290,412,000.30x = 81,730,431,914,608,576
  5. Step 5: Solve for x
    x = 81,730,431,914,608,576/290,412,000.30
  6. Step 6: Final answer
    x = 281,429,251.65

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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.