Home / 155,083,329.32-214,005,378.66-85,464,820.76

Finding the Fourth Proportional to 155,083,329.32, 214,005,378.66 and 85,464,820.76

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Solution

The fourth proportional to 155,083,329.32, 214,005,378.66 and 85,464,820.76 is: 117,936,153.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,083,329.32 : 214,005,378.66 = 85,464,820.76 : x
  2. Step 2: Convert to fraction form
    155,083,329.32/214,005,378.66 = 85,464,820.76/x
  3. Step 3: Cross multiply
    155,083,329.32x = 214,005,378.66 × 85,464,820.76
  4. Step 4: Simplify right side
    155,083,329.32x = 18,289,931,328,852,828
  5. Step 5: Solve for x
    x = 18,289,931,328,852,828/155,083,329.32
  6. Step 6: Final answer
    x = 117,936,153.48

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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.