Home / 423,280,266.78-634,922,540.64-132,122,982.90

Finding the Fourth Proportional to 423,280,266.78, 634,922,540.64 and 132,122,982.90

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Solution

The fourth proportional to 423,280,266.78, 634,922,540.64 and 132,122,982.90 is: 198,185,142.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,280,266.78 : 634,922,540.64 = 132,122,982.90 : x
  2. Step 2: Convert to fraction form
    423,280,266.78/634,922,540.64 = 132,122,982.90/x
  3. Step 3: Cross multiply
    423,280,266.78x = 634,922,540.64 × 132,122,982.90
  4. Step 4: Simplify right side
    423,280,266.78x = 83,887,859,979,803,280
  5. Step 5: Solve for x
    x = 83,887,859,979,803,280/423,280,266.78
  6. Step 6: Final answer
    x = 198,185,142.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.