Home / 15,404,978.64-21,259,533.96-8,529,459.60

Finding the Fourth Proportional to 15,404,978.64, 21,259,533.96 and 8,529,459.60

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Solution

The fourth proportional to 15,404,978.64, 21,259,533.96 and 8,529,459.60 is: 11,771,021.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404,978.64 : 21,259,533.96 = 8,529,459.60 : x
  2. Step 2: Convert to fraction form
    15,404,978.64/21,259,533.96 = 8,529,459.60/x
  3. Step 3: Cross multiply
    15,404,978.64x = 21,259,533.96 × 8,529,459.60
  4. Step 4: Simplify right side
    15,404,978.64x = 181,332,336,026,648.03
  5. Step 5: Solve for x
    x = 181,332,336,026,648.03/15,404,978.64
  6. Step 6: Final answer
    x = 11,771,021.58

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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.