Home / 288,665,965.49-398,687,842.77-195,685,048.13

Finding the Fourth Proportional to 288,665,965.49, 398,687,842.77 and 195,685,048.13

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Solution

The fourth proportional to 288,665,965.49, 398,687,842.77 and 195,685,048.13 is: 270,268,265.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,665,965.49 : 398,687,842.77 = 195,685,048.13 : x
  2. Step 2: Convert to fraction form
    288,665,965.49/398,687,842.77 = 195,685,048.13/x
  3. Step 3: Cross multiply
    288,665,965.49x = 398,687,842.77 × 195,685,048.13
  4. Step 4: Simplify right side
    288,665,965.49x = 78,017,249,701,293,312
  5. Step 5: Solve for x
    x = 78,017,249,701,293,312/288,665,965.49
  6. Step 6: Final answer
    x = 270,268,265.15

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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.