Home / 396,457,638.39-547,161,984.72-239,825,866.29

Finding the Fourth Proportional to 396,457,638.39, 547,161,984.72 and 239,825,866.29

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Solution

The fourth proportional to 396,457,638.39, 547,161,984.72 and 239,825,866.29 is: 330,990,210.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,457,638.39 : 547,161,984.72 = 239,825,866.29 : x
  2. Step 2: Convert to fraction form
    396,457,638.39/547,161,984.72 = 239,825,866.29/x
  3. Step 3: Cross multiply
    396,457,638.39x = 547,161,984.72 × 239,825,866.29
  4. Step 4: Simplify right side
    396,457,638.39x = 131,223,596,986,429,744
  5. Step 5: Solve for x
    x = 131,223,596,986,429,744/396,457,638.39
  6. Step 6: Final answer
    x = 330,990,210.00

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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.