Home / 875,513,540.90-1,208,199,728.49-484,375,764.26

Finding the Fourth Proportional to 875,513,540.90, 1,208,199,728.49 and 484,375,764.26

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Solution

The fourth proportional to 875,513,540.90, 1,208,199,728.49 and 484,375,764.26 is: 668,433,598.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,513,540.90 : 1,208,199,728.49 = 484,375,764.26 : x
  2. Step 2: Convert to fraction form
    875,513,540.90/1,208,199,728.49 = 484,375,764.26/x
  3. Step 3: Cross multiply
    875,513,540.90x = 1,208,199,728.49 × 484,375,764.26
  4. Step 4: Simplify right side
    875,513,540.90x = 585,222,666,866,068,224
  5. Step 5: Solve for x
    x = 585,222,666,866,068,224/875,513,540.90
  6. Step 6: Final answer
    x = 668,433,598.71

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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.