Home / 215,363,640.80-323,045,461.20-129,367,301.60

Finding the Fourth Proportional to 215,363,640.80, 323,045,461.20 and 129,367,301.60

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Solution

The fourth proportional to 215,363,640.80, 323,045,461.20 and 129,367,301.60 is: 194,050,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,363,640.80 : 323,045,461.20 = 129,367,301.60 : x
  2. Step 2: Convert to fraction form
    215,363,640.80/323,045,461.20 = 129,367,301.60/x
  3. Step 3: Cross multiply
    215,363,640.80x = 323,045,461.20 × 129,367,301.60
  4. Step 4: Simplify right side
    215,363,640.80x = 41,791,519,609,571,496
  5. Step 5: Solve for x
    x = 41,791,519,609,571,496/215,363,640.80
  6. Step 6: Final answer
    x = 194,050,952.40

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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.