Home / 212,798,927.28-293,662,387-115,013,783.28

Finding the Fourth Proportional to 212,798,927.28, 293,662,387 and 115,013,783.28

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Solution

The fourth proportional to 212,798,927.28, 293,662,387 and 115,013,783.28 is: 158,718,949.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,798,927.28 : 293,662,387 = 115,013,783.28 : x
  2. Step 2: Convert to fraction form
    212,798,927.28/293,662,387 = 115,013,783.28/x
  3. Step 3: Cross multiply
    212,798,927.28x = 293,662,387 × 115,013,783.28
  4. Step 4: Simplify right side
    212,798,927.28x = 33,775,222,135,905,488
  5. Step 5: Solve for x
    x = 33,775,222,135,905,488/212,798,927.28
  6. Step 6: Final answer
    x = 158,718,949.23

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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.