Home / 20,045,389.84-27,662,655.75-10,878,032.56

Finding the Fourth Proportional to 20,045,389.84, 27,662,655.75 and 10,878,032.56

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Solution

The fourth proportional to 20,045,389.84, 27,662,655.75 and 10,878,032.56 is: 15,011,694.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045,389.84 : 27,662,655.75 = 10,878,032.56 : x
  2. Step 2: Convert to fraction form
    20,045,389.84/27,662,655.75 = 10,878,032.56/x
  3. Step 3: Cross multiply
    20,045,389.84x = 27,662,655.75 × 10,878,032.56
  4. Step 4: Simplify right side
    20,045,389.84x = 300,915,269,944,571.25
  5. Step 5: Solve for x
    x = 300,915,269,944,571.25/20,045,389.84
  6. Step 6: Final answer
    x = 15,011,694.58

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1.5x scale

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.