Home / 472,392,686.80-708,589,030.20-278,204,145.40

Finding the Fourth Proportional to 472,392,686.80, 708,589,030.20 and 278,204,145.40

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Solution

The fourth proportional to 472,392,686.80, 708,589,030.20 and 278,204,145.40 is: 417,306,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,686.80 : 708,589,030.20 = 278,204,145.40 : x
  2. Step 2: Convert to fraction form
    472,392,686.80/708,589,030.20 = 278,204,145.40/x
  3. Step 3: Cross multiply
    472,392,686.80x = 708,589,030.20 × 278,204,145.40
  4. Step 4: Simplify right side
    472,392,686.80x = 197,132,405,586,605,792
  5. Step 5: Solve for x
    x = 197,132,405,586,605,792/472,392,686.80
  6. Step 6: Final answer
    x = 417,306,218.10

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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.