Home / 429,945,008.16-644,919,193.65-130,816,912.41

Finding the Fourth Proportional to 429,945,008.16, 644,919,193.65 and 130,816,912.41

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Solution

The fourth proportional to 429,945,008.16, 644,919,193.65 and 130,816,912.41 is: 196,225,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,945,008.16 : 644,919,193.65 = 130,816,912.41 : x
  2. Step 2: Convert to fraction form
    429,945,008.16/644,919,193.65 = 130,816,912.41/x
  3. Step 3: Cross multiply
    429,945,008.16x = 644,919,193.65 × 130,816,912.41
  4. Step 4: Simplify right side
    429,945,008.16x = 84,366,337,667,730,432
  5. Step 5: Solve for x
    x = 84,366,337,667,730,432/429,945,008.16
  6. Step 6: Final answer
    x = 196,225,880.21

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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.