Home / 472,393,078.20-708,589,617.30-440,108,037.45

Finding the Fourth Proportional to 472,393,078.20, 708,589,617.30 and 440,108,037.45

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Solution

The fourth proportional to 472,393,078.20, 708,589,617.30 and 440,108,037.45 is: 660,162,056.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,078.20 : 708,589,617.30 = 440,108,037.45 : x
  2. Step 2: Convert to fraction form
    472,393,078.20/708,589,617.30 = 440,108,037.45/x
  3. Step 3: Cross multiply
    472,393,078.20x = 708,589,617.30 × 440,108,037.45
  4. Step 4: Simplify right side
    472,393,078.20x = 311,855,985,827,349,568
  5. Step 5: Solve for x
    x = 311,855,985,827,349,568/472,393,078.20
  6. Step 6: Final answer
    x = 660,162,056.18

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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.