Home / 43,401,811.20-65,113,603.20-19,145,356.80

Finding the Fourth Proportional to 43,401,811.20, 65,113,603.20 and 19,145,356.80

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Solution

The fourth proportional to 43,401,811.20, 65,113,603.20 and 19,145,356.80 is: 28,722,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,401,811.20 : 65,113,603.20 = 19,145,356.80 : x
  2. Step 2: Convert to fraction form
    43,401,811.20/65,113,603.20 = 19,145,356.80/x
  3. Step 3: Cross multiply
    43,401,811.20x = 65,113,603.20 × 19,145,356.80
  4. Step 4: Simplify right side
    43,401,811.20x = 1,246,623,165,797,621.75
  5. Step 5: Solve for x
    x = 1,246,623,165,797,621.75/43,401,811.20
  6. Step 6: Final answer
    x = 28,722,837.40

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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.