Home / 287,130,156.52-396,237,600.30-156,749,964.52

Finding the Fourth Proportional to 287,130,156.52, 396,237,600.30 and 156,749,964.52

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Solution

The fourth proportional to 287,130,156.52, 396,237,600.30 and 156,749,964.52 is: 216,313,850.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,130,156.52 : 396,237,600.30 = 156,749,964.52 : x
  2. Step 2: Convert to fraction form
    287,130,156.52/396,237,600.30 = 156,749,964.52/x
  3. Step 3: Cross multiply
    287,130,156.52x = 396,237,600.30 × 156,749,964.52
  4. Step 4: Simplify right side
    287,130,156.52x = 62,110,229,788,514,944
  5. Step 5: Solve for x
    x = 62,110,229,788,514,944/287,130,156.52
  6. Step 6: Final answer
    x = 216,313,850.63

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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.