Home / 399,011,457.16-597,988,072.14-204,915,032.20

Finding the Fourth Proportional to 399,011,457.16, 597,988,072.14 and 204,915,032.20

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Solution

The fourth proportional to 399,011,457.16, 597,988,072.14 and 204,915,032.20 is: 307,100,818.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,011,457.16 : 597,988,072.14 = 204,915,032.20 : x
  2. Step 2: Convert to fraction form
    399,011,457.16/597,988,072.14 = 204,915,032.20/x
  3. Step 3: Cross multiply
    399,011,457.16x = 597,988,072.14 × 204,915,032.20
  4. Step 4: Simplify right side
    399,011,457.16x = 122,536,745,057,784,016
  5. Step 5: Solve for x
    x = 122,536,745,057,784,016/399,011,457.16
  6. Step 6: Final answer
    x = 307,100,818.43

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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.