Home / 342,144,205.60-513,216,308.40-137,818,919.20

Finding the Fourth Proportional to 342,144,205.60, 513,216,308.40 and 137,818,919.20

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Solution

The fourth proportional to 342,144,205.60, 513,216,308.40 and 137,818,919.20 is: 206,728,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,144,205.60 : 513,216,308.40 = 137,818,919.20 : x
  2. Step 2: Convert to fraction form
    342,144,205.60/513,216,308.40 = 137,818,919.20/x
  3. Step 3: Cross multiply
    342,144,205.60x = 513,216,308.40 × 137,818,919.20
  4. Step 4: Simplify right side
    342,144,205.60x = 70,730,916,939,501,872
  5. Step 5: Solve for x
    x = 70,730,916,939,501,872/342,144,205.60
  6. Step 6: Final answer
    x = 206,728,378.80

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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.