Home / 21,018,575.60-31,527,863.40-11,430,249.20

Finding the Fourth Proportional to 21,018,575.60, 31,527,863.40 and 11,430,249.20

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Solution

The fourth proportional to 21,018,575.60, 31,527,863.40 and 11,430,249.20 is: 17,145,373.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018,575.60 : 31,527,863.40 = 11,430,249.20 : x
  2. Step 2: Convert to fraction form
    21,018,575.60/31,527,863.40 = 11,430,249.20/x
  3. Step 3: Cross multiply
    21,018,575.60x = 31,527,863.40 × 11,430,249.20
  4. Step 4: Simplify right side
    21,018,575.60x = 360,371,335,405,559.25
  5. Step 5: Solve for x
    x = 360,371,335,405,559.25/21,018,575.60
  6. Step 6: Final answer
    x = 17,145,373.80

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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.