Home / 419,857,031.70-629,785,547.55-267,179,937.30

Finding the Fourth Proportional to 419,857,031.70, 629,785,547.55 and 267,179,937.30

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Solution

The fourth proportional to 419,857,031.70, 629,785,547.55 and 267,179,937.30 is: 400,769,905.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,857,031.70 : 629,785,547.55 = 267,179,937.30 : x
  2. Step 2: Convert to fraction form
    419,857,031.70/629,785,547.55 = 267,179,937.30/x
  3. Step 3: Cross multiply
    419,857,031.70x = 629,785,547.55 × 267,179,937.30
  4. Step 4: Simplify right side
    419,857,031.70x = 168,266,063,106,855,168
  5. Step 5: Solve for x
    x = 168,266,063,106,855,168/419,857,031.70
  6. Step 6: Final answer
    x = 400,769,905.95

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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.