Home / 257,779,512.20-386,333,345.10-104,299,934.60

Finding the Fourth Proportional to 257,779,512.20, 386,333,345.10 and 104,299,934.60

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Solution

The fourth proportional to 257,779,512.20, 386,333,345.10 and 104,299,934.60 is: 156,313,984.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,779,512.20 : 386,333,345.10 = 104,299,934.60 : x
  2. Step 2: Convert to fraction form
    257,779,512.20/386,333,345.10 = 104,299,934.60/x
  3. Step 3: Cross multiply
    257,779,512.20x = 386,333,345.10 × 104,299,934.60
  4. Step 4: Simplify right side
    257,779,512.20x = 40,294,542,627,729,232
  5. Step 5: Solve for x
    x = 40,294,542,627,729,232/257,779,512.20
  6. Step 6: Final answer
    x = 156,313,984.32

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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.