Home / 155,099,639.04-214,049,808.12-85,497,401.76

Finding the Fourth Proportional to 155,099,639.04, 214,049,808.12 and 85,497,401.76

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Solution

The fourth proportional to 155,099,639.04, 214,049,808.12 and 85,497,401.76 is: 117,993,198.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,099,639.04 : 214,049,808.12 = 85,497,401.76 : x
  2. Step 2: Convert to fraction form
    155,099,639.04/214,049,808.12 = 85,497,401.76/x
  3. Step 3: Cross multiply
    155,099,639.04x = 214,049,808.12 × 85,497,401.76
  4. Step 4: Simplify right side
    155,099,639.04x = 18,300,702,441,486,552
  5. Step 5: Solve for x
    x = 18,300,702,441,486,552/155,099,639.04
  6. Step 6: Final answer
    x = 117,993,198.15

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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.