Home / 166,212,000.30-249,318,000.45-79,905,981.90

Finding the Fourth Proportional to 166,212,000.30, 249,318,000.45 and 79,905,981.90

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Solution

The fourth proportional to 166,212,000.30, 249,318,000.45 and 79,905,981.90 is: 119,858,972.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,212,000.30 : 249,318,000.45 = 79,905,981.90 : x
  2. Step 2: Convert to fraction form
    166,212,000.30/249,318,000.45 = 79,905,981.90/x
  3. Step 3: Cross multiply
    166,212,000.30x = 249,318,000.45 × 79,905,981.90
  4. Step 4: Simplify right side
    166,212,000.30x = 19,921,999,631,301,892
  5. Step 5: Solve for x
    x = 19,921,999,631,301,892/166,212,000.30
  6. Step 6: Final answer
    x = 119,858,972.85

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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.