Home / 19,929,619.20-29,894,428.80-19,740,662.40

Finding the Fourth Proportional to 19,929,619.20, 29,894,428.80 and 19,740,662.40

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Solution

The fourth proportional to 19,929,619.20, 29,894,428.80 and 19,740,662.40 is: 29,610,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929,619.20 : 29,894,428.80 = 19,740,662.40 : x
  2. Step 2: Convert to fraction form
    19,929,619.20/29,894,428.80 = 19,740,662.40/x
  3. Step 3: Cross multiply
    19,929,619.20x = 29,894,428.80 × 19,740,662.40
  4. Step 4: Simplify right side
    19,929,619.20x = 590,135,826,581,637.12
  5. Step 5: Solve for x
    x = 590,135,826,581,637.12/19,929,619.20
  6. Step 6: Final answer
    x = 29,610,993.60

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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.