Home / 20,212,690.28-27,893,877.54-11,045,719.40

Finding the Fourth Proportional to 20,212,690.28, 27,893,877.54 and 11,045,719.40

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Solution

The fourth proportional to 20,212,690.28, 27,893,877.54 and 11,045,719.40 is: 15,243,292.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,690.28 : 27,893,877.54 = 11,045,719.40 : x
  2. Step 2: Convert to fraction form
    20,212,690.28/27,893,877.54 = 11,045,719.40/x
  3. Step 3: Cross multiply
    20,212,690.28x = 27,893,877.54 × 11,045,719.40
  4. Step 4: Simplify right side
    20,212,690.28x = 308,107,944,284,802.25
  5. Step 5: Solve for x
    x = 308,107,944,284,802.25/20,212,690.28
  6. Step 6: Final answer
    x = 15,243,292.21

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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.