Home / 19,406,720.80-29,105,998.80-9,813,080.80

Finding the Fourth Proportional to 19,406,720.80, 29,105,998.80 and 9,813,080.80

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Solution

The fourth proportional to 19,406,720.80, 29,105,998.80 and 9,813,080.80 is: 14,717,556.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406,720.80 : 29,105,998.80 = 9,813,080.80 : x
  2. Step 2: Convert to fraction form
    19,406,720.80/29,105,998.80 = 9,813,080.80/x
  3. Step 3: Cross multiply
    19,406,720.80x = 29,105,998.80 × 9,813,080.80
  4. Step 4: Simplify right side
    19,406,720.80x = 285,619,517,989,103.06
  5. Step 5: Solve for x
    x = 285,619,517,989,103.06/19,406,720.80
  6. Step 6: Final answer
    x = 14,717,556.92

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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.