Home / 39,318,211.02-54,259,383.06-21,915,659.82

Finding the Fourth Proportional to 39,318,211.02, 54,259,383.06 and 21,915,659.82

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Solution

The fourth proportional to 39,318,211.02, 54,259,383.06 and 21,915,659.82 is: 30,243,750.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,318,211.02 : 54,259,383.06 = 21,915,659.82 : x
  2. Step 2: Convert to fraction form
    39,318,211.02/54,259,383.06 = 21,915,659.82/x
  3. Step 3: Cross multiply
    39,318,211.02x = 54,259,383.06 × 21,915,659.82
  4. Step 4: Simplify right side
    39,318,211.02x = 1,189,130,181,186,030.75
  5. Step 5: Solve for x
    x = 1,189,130,181,186,030.75/39,318,211.02
  6. Step 6: Final answer
    x = 30,243,750.93

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Double scale
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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.