Home / 78,907,791.15-108,888,053.12-43,623,482.20

Finding the Fourth Proportional to 78,907,791.15, 108,888,053.12 and 43,623,482.20

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Solution

The fourth proportional to 78,907,791.15, 108,888,053.12 and 43,623,482.20 is: 60,197,807.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,907,791.15 : 108,888,053.12 = 43,623,482.20 : x
  2. Step 2: Convert to fraction form
    78,907,791.15/108,888,053.12 = 43,623,482.20/x
  3. Step 3: Cross multiply
    78,907,791.15x = 108,888,053.12 × 43,623,482.20
  4. Step 4: Simplify right side
    78,907,791.15x = 4,750,076,046,310,417
  5. Step 5: Solve for x
    x = 4,750,076,046,310,417/78,907,791.15
  6. Step 6: Final answer
    x = 60,197,807.81

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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.