Home / 429,945,009.16-644,919,195.15-130,816,913.41

Finding the Fourth Proportional to 429,945,009.16, 644,919,195.15 and 130,816,913.41

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Solution

The fourth proportional to 429,945,009.16, 644,919,195.15 and 130,816,913.41 is: 196,225,881.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,945,009.16 : 644,919,195.15 = 130,816,913.41 : x
  2. Step 2: Convert to fraction form
    429,945,009.16/644,919,195.15 = 130,816,913.41/x
  3. Step 3: Cross multiply
    429,945,009.16x = 644,919,195.15 × 130,816,913.41
  4. Step 4: Simplify right side
    429,945,009.16x = 84,366,338,508,384,432
  5. Step 5: Solve for x
    x = 84,366,338,508,384,432/429,945,009.16
  6. Step 6: Final answer
    x = 196,225,881.71

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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.