Home / 209,954,010.80-314,931,016.20-191,142,311.60

Finding the Fourth Proportional to 209,954,010.80, 314,931,016.20 and 191,142,311.60

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Solution

The fourth proportional to 209,954,010.80, 314,931,016.20 and 191,142,311.60 is: 286,713,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,954,010.80 : 314,931,016.20 = 191,142,311.60 : x
  2. Step 2: Convert to fraction form
    209,954,010.80/314,931,016.20 = 191,142,311.60/x
  3. Step 3: Cross multiply
    209,954,010.80x = 314,931,016.20 × 191,142,311.60
  4. Step 4: Simplify right side
    209,954,010.80x = 60,196,642,431,005,040
  5. Step 5: Solve for x
    x = 60,196,642,431,005,040/209,954,010.80
  6. Step 6: Final answer
    x = 286,713,467.40

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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.