Home / 342,208,015.20-513,312,022.80-265,766,824.80

Finding the Fourth Proportional to 342,208,015.20, 513,312,022.80 and 265,766,824.80

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Solution

The fourth proportional to 342,208,015.20, 513,312,022.80 and 265,766,824.80 is: 398,650,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,208,015.20 : 513,312,022.80 = 265,766,824.80 : x
  2. Step 2: Convert to fraction form
    342,208,015.20/513,312,022.80 = 265,766,824.80/x
  3. Step 3: Cross multiply
    342,208,015.20x = 513,312,022.80 × 265,766,824.80
  4. Step 4: Simplify right side
    342,208,015.20x = 136,421,306,431,221,216
  5. Step 5: Solve for x
    x = 136,421,306,431,221,216/342,208,015.20
  6. Step 6: Final answer
    x = 398,650,237.20

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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.