Home / 28,173,179.24-38,878,900.64-15,615,034.60

Finding the Fourth Proportional to 28,173,179.24, 38,878,900.64 and 15,615,034.60

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Solution

The fourth proportional to 28,173,179.24, 38,878,900.64 and 15,615,034.60 is: 21,548,699.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173,179.24 : 38,878,900.64 = 15,615,034.60 : x
  2. Step 2: Convert to fraction form
    28,173,179.24/38,878,900.64 = 15,615,034.60/x
  3. Step 3: Cross multiply
    28,173,179.24x = 38,878,900.64 × 15,615,034.60
  4. Step 4: Simplify right side
    28,173,179.24x = 607,095,378,703,562.12
  5. Step 5: Solve for x
    x = 607,095,378,703,562.12/28,173,179.24
  6. Step 6: Final answer
    x = 21,548,699.69

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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.