Home / 212,615,254.80-318,922,882.20-208,584,176.40

Finding the Fourth Proportional to 212,615,254.80, 318,922,882.20 and 208,584,176.40

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Solution

The fourth proportional to 212,615,254.80, 318,922,882.20 and 208,584,176.40 is: 312,876,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,615,254.80 : 318,922,882.20 = 208,584,176.40 : x
  2. Step 2: Convert to fraction form
    212,615,254.80/318,922,882.20 = 208,584,176.40/x
  3. Step 3: Cross multiply
    212,615,254.80x = 318,922,882.20 × 208,584,176.40
  4. Step 4: Simplify right side
    212,615,254.80x = 66,522,266,718,801,216
  5. Step 5: Solve for x
    x = 66,522,266,718,801,216/212,615,254.80
  6. Step 6: Final answer
    x = 312,876,264.60

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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.