Home / 645,790,192.28-968,839,246.20-209,091,007.92

Finding the Fourth Proportional to 645,790,192.28, 968,839,246.20 and 209,091,007.92

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Solution

The fourth proportional to 645,790,192.28, 968,839,246.20 and 209,091,007.92 is: 313,686,359.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,790,192.28 : 968,839,246.20 = 209,091,007.92 : x
  2. Step 2: Convert to fraction form
    645,790,192.28/968,839,246.20 = 209,091,007.92/x
  3. Step 3: Cross multiply
    645,790,192.28x = 968,839,246.20 × 209,091,007.92
  4. Step 4: Simplify right side
    645,790,192.28x = 202,575,574,500,411,040
  5. Step 5: Solve for x
    x = 202,575,574,500,411,040/645,790,192.28
  6. Step 6: Final answer
    x = 313,686,359.63

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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.