Home / 212,798,928.28-293,662,388.38-115,013,784.28

Finding the Fourth Proportional to 212,798,928.28, 293,662,388.38 and 115,013,784.28

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Solution

The fourth proportional to 212,798,928.28, 293,662,388.38 and 115,013,784.28 is: 158,718,950.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,798,928.28 : 293,662,388.38 = 115,013,784.28 : x
  2. Step 2: Convert to fraction form
    212,798,928.28/293,662,388.38 = 115,013,784.28/x
  3. Step 3: Cross multiply
    212,798,928.28x = 293,662,388.38 × 115,013,784.28
  4. Step 4: Simplify right side
    212,798,928.28x = 33,775,222,588,286,900
  5. Step 5: Solve for x
    x = 33,775,222,588,286,900/212,798,928.28
  6. Step 6: Final answer
    x = 158,718,950.61

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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.