Home / 170,747,937.07-256,083,572.85-78,543,120.40

Finding the Fourth Proportional to 170,747,937.07, 256,083,572.85 and 78,543,120.40

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Solution

The fourth proportional to 170,747,937.07, 256,083,572.85 and 78,543,120.40 is: 117,797,047.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,747,937.07 : 256,083,572.85 = 78,543,120.40 : x
  2. Step 2: Convert to fraction form
    170,747,937.07/256,083,572.85 = 78,543,120.40/x
  3. Step 3: Cross multiply
    170,747,937.07x = 256,083,572.85 × 78,543,120.40
  4. Step 4: Simplify right side
    170,747,937.07x = 20,113,602,894,819,724
  5. Step 5: Solve for x
    x = 20,113,602,894,819,724/170,747,937.07
  6. Step 6: Final answer
    x = 117,797,047.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.