Home / 20,085,282.15-27,717,362.78-10,918,155.75

Finding the Fourth Proportional to 20,085,282.15, 27,717,362.78 and 10,918,155.75

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Solution

The fourth proportional to 20,085,282.15, 27,717,362.78 and 10,918,155.75 is: 15,066,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085,282.15 : 27,717,362.78 = 10,918,155.75 : x
  2. Step 2: Convert to fraction form
    20,085,282.15/27,717,362.78 = 10,918,155.75/x
  3. Step 3: Cross multiply
    20,085,282.15x = 27,717,362.78 × 10,918,155.75
  4. Step 4: Simplify right side
    20,085,282.15x = 302,622,483,756,702.19
  5. Step 5: Solve for x
    x = 302,622,483,756,702.19/20,085,282.15
  6. Step 6: Final answer
    x = 15,066,877.40

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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.