Home / 448,429,387.20-672,644,080.80-431,210,698.80

Finding the Fourth Proportional to 448,429,387.20, 672,644,080.80 and 431,210,698.80

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Solution

The fourth proportional to 448,429,387.20, 672,644,080.80 and 431,210,698.80 is: 646,816,048.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,429,387.20 : 672,644,080.80 = 431,210,698.80 : x
  2. Step 2: Convert to fraction form
    448,429,387.20/672,644,080.80 = 431,210,698.80/x
  3. Step 3: Cross multiply
    448,429,387.20x = 672,644,080.80 × 431,210,698.80
  4. Step 4: Simplify right side
    448,429,387.20x = 290,051,324,125,451,648
  5. Step 5: Solve for x
    x = 290,051,324,125,451,648/448,429,387.20
  6. Step 6: Final answer
    x = 646,816,048.20

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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.