Home / 287,130,167.52-396,237,615.48-156,749,975.52

Finding the Fourth Proportional to 287,130,167.52, 396,237,615.48 and 156,749,975.52

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Solution

The fourth proportional to 287,130,167.52, 396,237,615.48 and 156,749,975.52 is: 216,313,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,130,167.52 : 396,237,615.48 = 156,749,975.52 : x
  2. Step 2: Convert to fraction form
    287,130,167.52/396,237,615.48 = 156,749,975.52/x
  3. Step 3: Cross multiply
    287,130,167.52x = 396,237,615.48 × 156,749,975.52
  4. Step 4: Simplify right side
    287,130,167.52x = 62,110,236,526,593,184
  5. Step 5: Solve for x
    x = 62,110,236,526,593,184/287,130,167.52
  6. Step 6: Final answer
    x = 216,313,865.81

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1.5x scale

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.