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Finding the Fourth Proportional to 56,515,744.48, 84,786,258.48 and 20,613,952.48

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Solution

The fourth proportional to 56,515,744.48, 84,786,258.48 and 20,613,952.48 is: 30,925,539.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,515,744.48 : 84,786,258.48 = 20,613,952.48 : x
  2. Step 2: Convert to fraction form
    56,515,744.48/84,786,258.48 = 20,613,952.48/x
  3. Step 3: Cross multiply
    56,515,744.48x = 84,786,258.48 × 20,613,952.48
  4. Step 4: Simplify right side
    56,515,744.48x = 1,747,779,903,263,717.25
  5. Step 5: Solve for x
    x = 1,747,779,903,263,717.25/56,515,744.48
  6. Step 6: Final answer
    x = 30,925,539.76

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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.