Home / 19,872,067.80-29,808,101.70-12,219,317.40

Finding the Fourth Proportional to 19,872,067.80, 29,808,101.70 and 12,219,317.40

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Solution

The fourth proportional to 19,872,067.80, 29,808,101.70 and 12,219,317.40 is: 18,328,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872,067.80 : 29,808,101.70 = 12,219,317.40 : x
  2. Step 2: Convert to fraction form
    19,872,067.80/29,808,101.70 = 12,219,317.40/x
  3. Step 3: Cross multiply
    19,872,067.80x = 29,808,101.70 × 12,219,317.40
  4. Step 4: Simplify right side
    19,872,067.80x = 364,234,655,763,779.56
  5. Step 5: Solve for x
    x = 364,234,655,763,779.56/19,872,067.80
  6. Step 6: Final answer
    x = 18,328,976.10

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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.