Home / 212,798,949.80-293,662,418.04-115,013,805.80

Finding the Fourth Proportional to 212,798,949.80, 293,662,418.04 and 115,013,805.80

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Solution

The fourth proportional to 212,798,949.80, 293,662,418.04 and 115,013,805.80 is: 158,718,980.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,798,949.80 : 293,662,418.04 = 115,013,805.80 : x
  2. Step 2: Convert to fraction form
    212,798,949.80/293,662,418.04 = 115,013,805.80/x
  3. Step 3: Cross multiply
    212,798,949.80x = 293,662,418.04 × 115,013,805.80
  4. Step 4: Simplify right side
    212,798,949.80x = 33,775,232,319,210,980
  5. Step 5: Solve for x
    x = 33,775,232,319,210,980/212,798,949.80
  6. Step 6: Final answer
    x = 158,718,980.29

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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.