Home / 409,936,625.19-565,711,294.32-221,764,860.45

Finding the Fourth Proportional to 409,936,625.19, 565,711,294.32 and 221,764,860.45

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Solution

The fourth proportional to 409,936,625.19, 565,711,294.32 and 221,764,860.45 is: 306,034,832.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,936,625.19 : 565,711,294.32 = 221,764,860.45 : x
  2. Step 2: Convert to fraction form
    409,936,625.19/565,711,294.32 = 221,764,860.45/x
  3. Step 3: Cross multiply
    409,936,625.19x = 565,711,294.32 × 221,764,860.45
  4. Step 4: Simplify right side
    409,936,625.19x = 125,454,886,239,863,680
  5. Step 5: Solve for x
    x = 125,454,886,239,863,680/409,936,625.19
  6. Step 6: Final answer
    x = 306,034,832.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.