Home / 212,010,212.60-318,036,314.10-73,814,557.40

Finding the Fourth Proportional to 212,010,212.60, 318,036,314.10 and 73,814,557.40

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Solution

The fourth proportional to 212,010,212.60, 318,036,314.10 and 73,814,557.40 is: 110,729,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,010,212.60 : 318,036,314.10 = 73,814,557.40 : x
  2. Step 2: Convert to fraction form
    212,010,212.60/318,036,314.10 = 73,814,557.40/x
  3. Step 3: Cross multiply
    212,010,212.60x = 318,036,314.10 × 73,814,557.40
  4. Step 4: Simplify right side
    212,010,212.60x = 23,475,709,762,418,884
  5. Step 5: Solve for x
    x = 23,475,709,762,418,884/212,010,212.60
  6. Step 6: Final answer
    x = 110,729,145.90

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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.