Home / 170,078,861.71-234,583,520.22-128,264,689.18

Finding the Fourth Proportional to 170,078,861.71, 234,583,520.22 and 128,264,689.18

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Solution

The fourth proportional to 170,078,861.71, 234,583,520.22 and 128,264,689.18 is: 176,910,769.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,078,861.71 : 234,583,520.22 = 128,264,689.18 : x
  2. Step 2: Convert to fraction form
    170,078,861.71/234,583,520.22 = 128,264,689.18/x
  3. Step 3: Cross multiply
    170,078,861.71x = 234,583,520.22 × 128,264,689.18
  4. Step 4: Simplify right side
    170,078,861.71x = 30,088,782,307,182,084
  5. Step 5: Solve for x
    x = 30,088,782,307,182,084/170,078,861.71
  6. Step 6: Final answer
    x = 176,910,769.54

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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.