Home / 212,300,505,304.96-318,495,482,476.80-68,868,334,012.80

Finding the Fourth Proportional to 212,300,505,304.96, 318,495,482,476.80 and 68,868,334,012.80

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Solution

The fourth proportional to 212,300,505,304.96, 318,495,482,476.80 and 68,868,334,012.80 is: 103,317,009,242.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,300,505,304.96 : 318,495,482,476.80 = 68,868,334,012.80 : x
  2. Step 2: Convert to fraction form
    212,300,505,304.96/318,495,482,476.80 = 68,868,334,012.80/x
  3. Step 3: Cross multiply
    212,300,505,304.96x = 318,495,482,476.80 × 68,868,334,012.80
  4. Step 4: Simplify right side
    212,300,505,304.96x = 21,934,253,268,780,149,899,264
  5. Step 5: Solve for x
    x = 21,934,253,268,780,149,899,264/212,300,505,304.96
  6. Step 6: Final answer
    x = 103,317,009,242.50

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1.5x scale

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.