Home / 28,276,844.60-42,412,090.56-7,809,473.86

Finding the Fourth Proportional to 28,276,844.60, 42,412,090.56 and 7,809,473.86

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Solution

The fourth proportional to 28,276,844.60, 42,412,090.56 and 7,809,473.86 is: 11,713,333.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,276,844.60 : 42,412,090.56 = 7,809,473.86 : x
  2. Step 2: Convert to fraction form
    28,276,844.60/42,412,090.56 = 7,809,473.86/x
  3. Step 3: Cross multiply
    28,276,844.60x = 42,412,090.56 × 7,809,473.86
  4. Step 4: Simplify right side
    28,276,844.60x = 331,216,112,440,957
  5. Step 5: Solve for x
    x = 331,216,112,440,957/28,276,844.60
  6. Step 6: Final answer
    x = 11,713,333.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.