Home / 28,012,912.65-42,019,368.98-19,793,291.85

Finding the Fourth Proportional to 28,012,912.65, 42,019,368.98 and 19,793,291.85

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Solution

The fourth proportional to 28,012,912.65, 42,019,368.98 and 19,793,291.85 is: 29,689,937.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012,912.65 : 42,019,368.98 = 19,793,291.85 : x
  2. Step 2: Convert to fraction form
    28,012,912.65/42,019,368.98 = 19,793,291.85/x
  3. Step 3: Cross multiply
    28,012,912.65x = 42,019,368.98 × 19,793,291.85
  4. Step 4: Simplify right side
    28,012,912.65x = 831,701,633,475,010.50
  5. Step 5: Solve for x
    x = 831,701,633,475,010.50/28,012,912.65
  6. Step 6: Final answer
    x = 29,689,937.78

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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.