Home / 418,928,235.80-628,675,788.90-188,778,853.40

Finding the Fourth Proportional to 418,928,235.80, 628,675,788.90 and 188,778,853.40

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Solution

The fourth proportional to 418,928,235.80, 628,675,788.90 and 188,778,853.40 is: 283,296,002.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,928,235.80 : 628,675,788.90 = 188,778,853.40 : x
  2. Step 2: Convert to fraction form
    418,928,235.80/628,675,788.90 = 188,778,853.40/x
  3. Step 3: Cross multiply
    418,928,235.80x = 628,675,788.90 × 188,778,853.40
  4. Step 4: Simplify right side
    418,928,235.80x = 118,680,694,588,882,448
  5. Step 5: Solve for x
    x = 118,680,694,588,882,448/418,928,235.80
  6. Step 6: Final answer
    x = 283,296,002.62

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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.