Home / 326,746,955.20-490,120,432.80-286,436,171.20

Finding the Fourth Proportional to 326,746,955.20, 490,120,432.80 and 286,436,171.20

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Solution

The fourth proportional to 326,746,955.20, 490,120,432.80 and 286,436,171.20 is: 429,654,256.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,746,955.20 : 490,120,432.80 = 286,436,171.20 : x
  2. Step 2: Convert to fraction form
    326,746,955.20/490,120,432.80 = 286,436,171.20/x
  3. Step 3: Cross multiply
    326,746,955.20x = 490,120,432.80 × 286,436,171.20
  4. Step 4: Simplify right side
    326,746,955.20x = 140,388,220,198,118,896
  5. Step 5: Solve for x
    x = 140,388,220,198,118,896/326,746,955.20
  6. Step 6: Final answer
    x = 429,654,256.80

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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.