Home / 18,887,664.56-28,328,327.60-5,242,197.24

Finding the Fourth Proportional to 18,887,664.56, 28,328,327.60 and 5,242,197.24

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Solution

The fourth proportional to 18,887,664.56, 28,328,327.60 and 5,242,197.24 is: 7,862,416.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,664.56 : 28,328,327.60 = 5,242,197.24 : x
  2. Step 2: Convert to fraction form
    18,887,664.56/28,328,327.60 = 5,242,197.24/x
  3. Step 3: Cross multiply
    18,887,664.56x = 28,328,327.60 × 5,242,197.24
  4. Step 4: Simplify right side
    18,887,664.56x = 148,502,680,732,324.84
  5. Step 5: Solve for x
    x = 148,502,680,732,324.84/18,887,664.56
  6. Step 6: Final answer
    x = 7,862,416.25

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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.