Home / 72,702,022.95-109,038,370.59-26,628,160.43

Finding the Fourth Proportional to 72,702,022.95, 109,038,370.59 and 26,628,160.43

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Solution

The fourth proportional to 72,702,022.95, 109,038,370.59 and 26,628,160.43 is: 39,936,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,702,022.95 : 109,038,370.59 = 26,628,160.43 : x
  2. Step 2: Convert to fraction form
    72,702,022.95/109,038,370.59 = 26,628,160.43/x
  3. Step 3: Cross multiply
    72,702,022.95x = 109,038,370.59 × 26,628,160.43
  4. Step 4: Simplify right side
    72,702,022.95x = 2,903,491,225,368,910
  5. Step 5: Solve for x
    x = 2,903,491,225,368,910/72,702,022.95
  6. Step 6: Final answer
    x = 39,936,869.81

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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.