Home / 20,045,393.97-27,662,661.83-10,878,036.81

Finding the Fourth Proportional to 20,045,393.97, 27,662,661.83 and 10,878,036.81

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Solution

The fourth proportional to 20,045,393.97, 27,662,661.83 and 10,878,036.81 is: 15,011,700.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045,393.97 : 27,662,661.83 = 10,878,036.81 : x
  2. Step 2: Convert to fraction form
    20,045,393.97/27,662,661.83 = 10,878,036.81/x
  3. Step 3: Cross multiply
    20,045,393.97x = 27,662,661.83 × 10,878,036.81
  4. Step 4: Simplify right side
    20,045,393.97x = 300,915,453,594,931.81
  5. Step 5: Solve for x
    x = 300,915,453,594,931.81/20,045,393.97
  6. Step 6: Final answer
    x = 15,011,700.65

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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.