Home / 216,140,385.28-298,270,170.96-117,020,340.16

Finding the Fourth Proportional to 216,140,385.28, 298,270,170.96 and 117,020,340.16

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Solution

The fourth proportional to 216,140,385.28, 298,270,170.96 and 117,020,340.16 is: 161,486,141.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,140,385.28 : 298,270,170.96 = 117,020,340.16 : x
  2. Step 2: Convert to fraction form
    216,140,385.28/298,270,170.96 = 117,020,340.16/x
  3. Step 3: Cross multiply
    216,140,385.28x = 298,270,170.96 × 117,020,340.16
  4. Step 4: Simplify right side
    216,140,385.28x = 34,903,676,865,320,552
  5. Step 5: Solve for x
    x = 34,903,676,865,320,552/216,140,385.28
  6. Step 6: Final answer
    x = 161,486,141.61

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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.