Home / 472,393,387.20-708,590,080.80-264,918,820.80

Finding the Fourth Proportional to 472,393,387.20, 708,590,080.80 and 264,918,820.80

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Solution

The fourth proportional to 472,393,387.20, 708,590,080.80 and 264,918,820.80 is: 397,378,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,387.20 : 708,590,080.80 = 264,918,820.80 : x
  2. Step 2: Convert to fraction form
    472,393,387.20/708,590,080.80 = 264,918,820.80/x
  3. Step 3: Cross multiply
    472,393,387.20x = 708,590,080.80 × 264,918,820.80
  4. Step 4: Simplify right side
    472,393,387.20x = 187,718,848,636,112,704
  5. Step 5: Solve for x
    x = 187,718,848,636,112,704/472,393,387.20
  6. Step 6: Final answer
    x = 397,378,231.20

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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.