Home / 65,359,815.20-98,039,722.80-19,921,536.80

Finding the Fourth Proportional to 65,359,815.20, 98,039,722.80 and 19,921,536.80

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Solution

The fourth proportional to 65,359,815.20, 98,039,722.80 and 19,921,536.80 is: 29,882,305.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,359,815.20 : 98,039,722.80 = 19,921,536.80 : x
  2. Step 2: Convert to fraction form
    65,359,815.20/98,039,722.80 = 19,921,536.80/x
  3. Step 3: Cross multiply
    65,359,815.20x = 98,039,722.80 × 19,921,536.80
  4. Step 4: Simplify right side
    65,359,815.20x = 1,953,101,945,621,999
  5. Step 5: Solve for x
    x = 1,953,101,945,621,999/65,359,815.20
  6. Step 6: Final answer
    x = 29,882,305.20

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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.