Home / 287,130,143.52-396,237,582.36-156,749,951.52

Finding the Fourth Proportional to 287,130,143.52, 396,237,582.36 and 156,749,951.52

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Solution

The fourth proportional to 287,130,143.52, 396,237,582.36 and 156,749,951.52 is: 216,313,832.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,130,143.52 : 396,237,582.36 = 156,749,951.52 : x
  2. Step 2: Convert to fraction form
    287,130,143.52/396,237,582.36 = 156,749,951.52/x
  3. Step 3: Cross multiply
    287,130,143.52x = 396,237,582.36 × 156,749,951.52
  4. Step 4: Simplify right side
    287,130,143.52x = 62,110,221,825,332,016
  5. Step 5: Solve for x
    x = 62,110,221,825,332,016/287,130,143.52
  6. Step 6: Final answer
    x = 216,313,832.69

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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.