Home / 9,342,489.72-12,893,010.81-5,212,881.57

Finding the Fourth Proportional to 9,342,489.72, 12,893,010.81 and 5,212,881.57

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Solution

The fourth proportional to 9,342,489.72, 12,893,010.81 and 5,212,881.57 is: 7,193,985.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,342,489.72 : 12,893,010.81 = 5,212,881.57 : x
  2. Step 2: Convert to fraction form
    9,342,489.72/12,893,010.81 = 5,212,881.57/x
  3. Step 3: Cross multiply
    9,342,489.72x = 12,893,010.81 × 5,212,881.57
  4. Step 4: Simplify right side
    9,342,489.72x = 67,209,738,433,259.78
  5. Step 5: Solve for x
    x = 67,209,738,433,259.78/9,342,489.72
  6. Step 6: Final answer
    x = 7,193,985.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.