Home / 720,046,447.80-1,080,069,671.70-538,647,919.80

Finding the Fourth Proportional to 720,046,447.80, 1,080,069,671.70 and 538,647,919.80

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Solution

The fourth proportional to 720,046,447.80, 1,080,069,671.70 and 538,647,919.80 is: 807,971,879.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,046,447.80 : 1,080,069,671.70 = 538,647,919.80 : x
  2. Step 2: Convert to fraction form
    720,046,447.80/1,080,069,671.70 = 538,647,919.80/x
  3. Step 3: Cross multiply
    720,046,447.80x = 1,080,069,671.70 × 538,647,919.80
  4. Step 4: Simplify right side
    720,046,447.80x = 581,777,281,900,273,920
  5. Step 5: Solve for x
    x = 581,777,281,900,273,920/720,046,447.80
  6. Step 6: Final answer
    x = 807,971,879.70

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1.5x scale

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.