Home / 780,965,724.24-1,077,729,742.98-428,547,612.60

Finding the Fourth Proportional to 780,965,724.24, 1,077,729,742.98 and 428,547,612.60

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Solution

The fourth proportional to 780,965,724.24, 1,077,729,742.98 and 428,547,612.60 is: 591,394,083.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,965,724.24 : 1,077,729,742.98 = 428,547,612.60 : x
  2. Step 2: Convert to fraction form
    780,965,724.24/1,077,729,742.98 = 428,547,612.60/x
  3. Step 3: Cross multiply
    780,965,724.24x = 1,077,729,742.98 × 428,547,612.60
  4. Step 4: Simplify right side
    780,965,724.24x = 461,858,508,382,090,624
  5. Step 5: Solve for x
    x = 461,858,508,382,090,624/780,965,724.24
  6. Step 6: Final answer
    x = 591,394,083.05

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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.