Home / 875,513,589.40-1,208,199,795.42-484,375,812.76

Finding the Fourth Proportional to 875,513,589.40, 1,208,199,795.42 and 484,375,812.76

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Solution

The fourth proportional to 875,513,589.40, 1,208,199,795.42 and 484,375,812.76 is: 668,433,665.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,513,589.40 : 1,208,199,795.42 = 484,375,812.76 : x
  2. Step 2: Convert to fraction form
    875,513,589.40/1,208,199,795.42 = 484,375,812.76/x
  3. Step 3: Cross multiply
    875,513,589.40x = 1,208,199,795.42 × 484,375,812.76
  4. Step 4: Simplify right side
    875,513,589.40x = 585,222,757,883,028,224
  5. Step 5: Solve for x
    x = 585,222,757,883,028,224/875,513,589.40
  6. Step 6: Final answer
    x = 668,433,665.64

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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.