Home / 39,348,986.40-59,023,479.60-12,419,143.20

Finding the Fourth Proportional to 39,348,986.40, 59,023,479.60 and 12,419,143.20

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Solution

The fourth proportional to 39,348,986.40, 59,023,479.60 and 12,419,143.20 is: 18,628,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,348,986.40 : 59,023,479.60 = 12,419,143.20 : x
  2. Step 2: Convert to fraction form
    39,348,986.40/59,023,479.60 = 12,419,143.20/x
  3. Step 3: Cross multiply
    39,348,986.40x = 59,023,479.60 × 12,419,143.20
  4. Step 4: Simplify right side
    39,348,986.40x = 733,021,045,314,678.75
  5. Step 5: Solve for x
    x = 733,021,045,314,678.75/39,348,986.40
  6. Step 6: Final answer
    x = 18,628,714.80

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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.