Home / 216,230,397.17-298,402,766.21-123,409,042.61

Finding the Fourth Proportional to 216,230,397.17, 298,402,766.21 and 123,409,042.61

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Solution

The fourth proportional to 216,230,397.17, 298,402,766.21 and 123,409,042.61 is: 170,307,228.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,230,397.17 : 298,402,766.21 = 123,409,042.61 : x
  2. Step 2: Convert to fraction form
    216,230,397.17/298,402,766.21 = 123,409,042.61/x
  3. Step 3: Cross multiply
    216,230,397.17x = 298,402,766.21 × 123,409,042.61
  4. Step 4: Simplify right side
    216,230,397.17x = 36,825,599,688,968,264
  5. Step 5: Solve for x
    x = 36,825,599,688,968,264/216,230,397.17
  6. Step 6: Final answer
    x = 170,307,228.64

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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.