Home / 396,626,473.40-547,357,825.16-220,421,895.44

Finding the Fourth Proportional to 396,626,473.40, 547,357,825.16 and 220,421,895.44

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Solution

The fourth proportional to 396,626,473.40, 547,357,825.16 and 220,421,895.44 is: 304,189,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,626,473.40 : 547,357,825.16 = 220,421,895.44 : x
  2. Step 2: Convert to fraction form
    396,626,473.40/547,357,825.16 = 220,421,895.44/x
  3. Step 3: Cross multiply
    396,626,473.40x = 547,357,825.16 × 220,421,895.44
  4. Step 4: Simplify right side
    396,626,473.40x = 120,649,649,305,683,312
  5. Step 5: Solve for x
    x = 120,649,649,305,683,312/396,626,473.40
  6. Step 6: Final answer
    x = 304,189,602.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.