Home / 396,288,789.81-546,863,547.63-220,088,135.37

Finding the Fourth Proportional to 396,288,789.81, 546,863,547.63 and 220,088,135.37

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Solution

The fourth proportional to 396,288,789.81, 546,863,547.63 and 220,088,135.37 is: 303,713,306.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,288,789.81 : 546,863,547.63 = 220,088,135.37 : x
  2. Step 2: Convert to fraction form
    396,288,789.81/546,863,547.63 = 220,088,135.37/x
  3. Step 3: Cross multiply
    396,288,789.81x = 546,863,547.63 × 220,088,135.37
  4. Step 4: Simplify right side
    396,288,789.81x = 120,358,178,499,709,888
  5. Step 5: Solve for x
    x = 120,358,178,499,709,888/396,288,789.81
  6. Step 6: Final answer
    x = 303,713,306.04

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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.