Home / 155,083,330.32-214,005,380.04-85,464,821.76

Finding the Fourth Proportional to 155,083,330.32, 214,005,380.04 and 85,464,821.76

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Solution

The fourth proportional to 155,083,330.32, 214,005,380.04 and 85,464,821.76 is: 117,936,154.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,083,330.32 : 214,005,380.04 = 85,464,821.76 : x
  2. Step 2: Convert to fraction form
    155,083,330.32/214,005,380.04 = 85,464,821.76/x
  3. Step 3: Cross multiply
    155,083,330.32x = 214,005,380.04 × 85,464,821.76
  4. Step 4: Simplify right side
    155,083,330.32x = 18,289,931,660,799,664
  5. Step 5: Solve for x
    x = 18,289,931,660,799,664/155,083,330.32
  6. Step 6: Final answer
    x = 117,936,154.86

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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.