Home / 199,223,148.38-298,221,809.40-129,986,869.10

Finding the Fourth Proportional to 199,223,148.38, 298,221,809.40 and 129,986,869.10

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Solution

The fourth proportional to 199,223,148.38, 298,221,809.40 and 129,986,869.10 is: 194,580,396.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,223,148.38 : 298,221,809.40 = 129,986,869.10 : x
  2. Step 2: Convert to fraction form
    199,223,148.38/298,221,809.40 = 129,986,869.10/x
  3. Step 3: Cross multiply
    199,223,148.38x = 298,221,809.40 × 129,986,869.10
  4. Step 4: Simplify right side
    199,223,148.38x = 38,764,919,299,751,840
  5. Step 5: Solve for x
    x = 38,764,919,299,751,840/199,223,148.38
  6. Step 6: Final answer
    x = 194,580,396.99

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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.