Home / 472,392,689.20-708,589,033.80-299,355,499.60

Finding the Fourth Proportional to 472,392,689.20, 708,589,033.80 and 299,355,499.60

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Solution

The fourth proportional to 472,392,689.20, 708,589,033.80 and 299,355,499.60 is: 449,033,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,689.20 : 708,589,033.80 = 299,355,499.60 : x
  2. Step 2: Convert to fraction form
    472,392,689.20/708,589,033.80 = 299,355,499.60/x
  3. Step 3: Cross multiply
    472,392,689.20x = 708,589,033.80 × 299,355,499.60
  4. Step 4: Simplify right side
    472,392,689.20x = 212,120,024,224,280,288
  5. Step 5: Solve for x
    x = 212,120,024,224,280,288/472,392,689.20
  6. Step 6: Final answer
    x = 449,033,249.40

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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.