Home / 212,615,251.80-318,922,877.70-208,584,173.40

Finding the Fourth Proportional to 212,615,251.80, 318,922,877.70 and 208,584,173.40

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Solution

The fourth proportional to 212,615,251.80, 318,922,877.70 and 208,584,173.40 is: 312,876,260.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,615,251.80 : 318,922,877.70 = 208,584,173.40 : x
  2. Step 2: Convert to fraction form
    212,615,251.80/318,922,877.70 = 208,584,173.40/x
  3. Step 3: Cross multiply
    212,615,251.80x = 318,922,877.70 × 208,584,173.40
  4. Step 4: Simplify right side
    212,615,251.80x = 66,522,264,823,403,792
  5. Step 5: Solve for x
    x = 66,522,264,823,403,792/212,615,251.80
  6. Step 6: Final answer
    x = 312,876,260.10

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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.