Home / 768,889,129.59-1,061,011,913.76-451,362,268.29

Finding the Fourth Proportional to 768,889,129.59, 1,061,011,913.76 and 451,362,268.29

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Solution

The fourth proportional to 768,889,129.59, 1,061,011,913.76 and 451,362,268.29 is: 622,847,593.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,889,129.59 : 1,061,011,913.76 = 451,362,268.29 : x
  2. Step 2: Convert to fraction form
    768,889,129.59/1,061,011,913.76 = 451,362,268.29/x
  3. Step 3: Cross multiply
    768,889,129.59x = 1,061,011,913.76 × 451,362,268.29
  4. Step 4: Simplify right side
    768,889,129.59x = 478,900,744,073,448,640
  5. Step 5: Solve for x
    x = 478,900,744,073,448,640/768,889,129.59
  6. Step 6: Final answer
    x = 622,847,593.55

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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.