Home / 209,868,001.80-314,802,002.70-123,517,768.20

Finding the Fourth Proportional to 209,868,001.80, 314,802,002.70 and 123,517,768.20

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Solution

The fourth proportional to 209,868,001.80, 314,802,002.70 and 123,517,768.20 is: 185,276,652.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,868,001.80 : 314,802,002.70 = 123,517,768.20 : x
  2. Step 2: Convert to fraction form
    209,868,001.80/314,802,002.70 = 123,517,768.20/x
  3. Step 3: Cross multiply
    209,868,001.80x = 314,802,002.70 × 123,517,768.20
  4. Step 4: Simplify right side
    209,868,001.80x = 38,883,640,798,394,376
  5. Step 5: Solve for x
    x = 38,883,640,798,394,376/209,868,001.80
  6. Step 6: Final answer
    x = 185,276,652.30

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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.