Home / 209,808,004.80-314,712,007.20-205,776,926.40

Finding the Fourth Proportional to 209,808,004.80, 314,712,007.20 and 205,776,926.40

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Solution

The fourth proportional to 209,808,004.80, 314,712,007.20 and 205,776,926.40 is: 308,665,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,808,004.80 : 314,712,007.20 = 205,776,926.40 : x
  2. Step 2: Convert to fraction form
    209,808,004.80/314,712,007.20 = 205,776,926.40/x
  3. Step 3: Cross multiply
    209,808,004.80x = 314,712,007.20 × 205,776,926.40
  4. Step 4: Simplify right side
    209,808,004.80x = 64,760,469,542,790,672
  5. Step 5: Solve for x
    x = 64,760,469,542,790,672/209,808,004.80
  6. Step 6: Final answer
    x = 308,665,389.60

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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.