Home / 209,858,657.80-314,787,986.70-187,750,712.20

Finding the Fourth Proportional to 209,858,657.80, 314,787,986.70 and 187,750,712.20

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Solution

The fourth proportional to 209,858,657.80, 314,787,986.70 and 187,750,712.20 is: 281,626,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,858,657.80 : 314,787,986.70 = 187,750,712.20 : x
  2. Step 2: Convert to fraction form
    209,858,657.80/314,787,986.70 = 187,750,712.20/x
  3. Step 3: Cross multiply
    209,858,657.80x = 314,787,986.70 × 187,750,712.20
  4. Step 4: Simplify right side
    209,858,657.80x = 59,101,668,694,929,120
  5. Step 5: Solve for x
    x = 59,101,668,694,929,120/209,858,657.80
  6. Step 6: Final answer
    x = 281,626,068.30

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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.