Home / 670,007,788.20-1,005,043,175.10-209,960,965.80

Finding the Fourth Proportional to 670,007,788.20, 1,005,043,175.10 and 209,960,965.80

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Solution

The fourth proportional to 670,007,788.20, 1,005,043,175.10 and 209,960,965.80 is: 314,951,317.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,007,788.20 : 1,005,043,175.10 = 209,960,965.80 : x
  2. Step 2: Convert to fraction form
    670,007,788.20/1,005,043,175.10 = 209,960,965.80/x
  3. Step 3: Cross multiply
    670,007,788.20x = 1,005,043,175.10 × 209,960,965.80
  4. Step 4: Simplify right side
    670,007,788.20x = 211,019,835,714,694,528
  5. Step 5: Solve for x
    x = 211,019,835,714,694,528/670,007,788.20
  6. Step 6: Final answer
    x = 314,951,317.63

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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.