Home / 212,492,289.06-318,708,158.04-66,922,062.48

Finding the Fourth Proportional to 212,492,289.06, 318,708,158.04 and 66,922,062.48

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Solution

The fourth proportional to 212,492,289.06, 318,708,158.04 and 66,922,062.48 is: 100,373,558.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,492,289.06 : 318,708,158.04 = 66,922,062.48 : x
  2. Step 2: Convert to fraction form
    212,492,289.06/318,708,158.04 = 66,922,062.48/x
  3. Step 3: Cross multiply
    212,492,289.06x = 318,708,158.04 × 66,922,062.48
  4. Step 4: Simplify right side
    212,492,289.06x = 21,328,607,265,238,596
  5. Step 5: Solve for x
    x = 21,328,607,265,238,596/212,492,289.06
  6. Step 6: Final answer
    x = 100,373,558.78

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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.