Home / 431,746,528.80-647,395,844.40-158,976,890.40

Finding the Fourth Proportional to 431,746,528.80, 647,395,844.40 and 158,976,890.40

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Solution

The fourth proportional to 431,746,528.80, 647,395,844.40 and 158,976,890.40 is: 238,382,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,746,528.80 : 647,395,844.40 = 158,976,890.40 : x
  2. Step 2: Convert to fraction form
    431,746,528.80/647,395,844.40 = 158,976,890.40/x
  3. Step 3: Cross multiply
    431,746,528.80x = 647,395,844.40 × 158,976,890.40
  4. Step 4: Simplify right side
    431,746,528.80x = 102,920,978,200,594,256
  5. Step 5: Solve for x
    x = 102,920,978,200,594,256/431,746,528.80
  6. Step 6: Final answer
    x = 238,382,873.60

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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.