Home / 468,195,628.80-646,109,743.02-280,023,919.44

Finding the Fourth Proportional to 468,195,628.80, 646,109,743.02 and 280,023,919.44

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Solution

The fourth proportional to 468,195,628.80, 646,109,743.02 and 280,023,919.44 is: 386,432,874.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,195,628.80 : 646,109,743.02 = 280,023,919.44 : x
  2. Step 2: Convert to fraction form
    468,195,628.80/646,109,743.02 = 280,023,919.44/x
  3. Step 3: Cross multiply
    468,195,628.80x = 646,109,743.02 × 280,023,919.44
  4. Step 4: Simplify right side
    468,195,628.80x = 180,926,182,628,831,584
  5. Step 5: Solve for x
    x = 180,926,182,628,831,584/468,195,628.80
  6. Step 6: Final answer
    x = 386,432,874.42

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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.