Home / 15,077,220.66-20,806,548.75-8,201,686.32

Finding the Fourth Proportional to 15,077,220.66, 20,806,548.75 and 8,201,686.32

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Solution

The fourth proportional to 15,077,220.66, 20,806,548.75 and 8,201,686.32 is: 11,318,318.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077,220.66 : 20,806,548.75 = 8,201,686.32 : x
  2. Step 2: Convert to fraction form
    15,077,220.66/20,806,548.75 = 8,201,686.32/x
  3. Step 3: Cross multiply
    15,077,220.66x = 20,806,548.75 × 8,201,686.32
  4. Step 4: Simplify right side
    15,077,220.66x = 170,648,786,249,288.09
  5. Step 5: Solve for x
    x = 170,648,786,249,288.09/15,077,220.66
  6. Step 6: Final answer
    x = 11,318,318.55

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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.