Home / 21,387,816.60-32,081,724.90-19,036,354.20

Finding the Fourth Proportional to 21,387,816.60, 32,081,724.90 and 19,036,354.20

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Solution

The fourth proportional to 21,387,816.60, 32,081,724.90 and 19,036,354.20 is: 28,554,531.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,816.60 : 32,081,724.90 = 19,036,354.20 : x
  2. Step 2: Convert to fraction form
    21,387,816.60/32,081,724.90 = 19,036,354.20/x
  3. Step 3: Cross multiply
    21,387,816.60x = 32,081,724.90 × 19,036,354.20
  4. Step 4: Simplify right side
    21,387,816.60x = 610,719,078,543,359.50
  5. Step 5: Solve for x
    x = 610,719,078,543,359.50/21,387,816.60
  6. Step 6: Final answer
    x = 28,554,531.30

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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.