Home / 111,255,006.40-166,882,509.60-72,938,766.40

Finding the Fourth Proportional to 111,255,006.40, 166,882,509.60 and 72,938,766.40

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Solution

The fourth proportional to 111,255,006.40, 166,882,509.60 and 72,938,766.40 is: 109,408,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,255,006.40 : 166,882,509.60 = 72,938,766.40 : x
  2. Step 2: Convert to fraction form
    111,255,006.40/166,882,509.60 = 72,938,766.40/x
  3. Step 3: Cross multiply
    111,255,006.40x = 166,882,509.60 × 72,938,766.40
  4. Step 4: Simplify right side
    111,255,006.40x = 12,172,204,383,960,158
  5. Step 5: Solve for x
    x = 12,172,204,383,960,158/111,255,006.40
  6. Step 6: Final answer
    x = 109,408,149.60

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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.