Home / 20,912,938.07-31,369,431.60-6,536,081.21

Finding the Fourth Proportional to 20,912,938.07, 31,369,431.60 and 6,536,081.21

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Solution

The fourth proportional to 20,912,938.07, 31,369,431.60 and 6,536,081.21 is: 9,804,129.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,938.07 : 31,369,431.60 = 6,536,081.21 : x
  2. Step 2: Convert to fraction form
    20,912,938.07/31,369,431.60 = 6,536,081.21/x
  3. Step 3: Cross multiply
    20,912,938.07x = 31,369,431.60 × 6,536,081.21
  4. Step 4: Simplify right side
    20,912,938.07x = 205,033,152,292,293.09
  5. Step 5: Solve for x
    x = 205,033,152,292,293.09/20,912,938.07
  6. Step 6: Final answer
    x = 9,804,129.47

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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.