Home / 472,405,150.80-708,607,726.20-278,117,125.20

Finding the Fourth Proportional to 472,405,150.80, 708,607,726.20 and 278,117,125.20

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Solution

The fourth proportional to 472,405,150.80, 708,607,726.20 and 278,117,125.20 is: 417,175,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,405,150.80 : 708,607,726.20 = 278,117,125.20 : x
  2. Step 2: Convert to fraction form
    472,405,150.80/708,607,726.20 = 278,117,125.20/x
  3. Step 3: Cross multiply
    472,405,150.80x = 708,607,726.20 × 278,117,125.20
  4. Step 4: Simplify right side
    472,405,150.80x = 197,075,943,705,252,736
  5. Step 5: Solve for x
    x = 197,075,943,705,252,736/472,405,150.80
  6. Step 6: Final answer
    x = 417,175,687.80

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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.