Home / 21,977,208.40-32,979,809.40-12,879,288.40

Finding the Fourth Proportional to 21,977,208.40, 32,979,809.40 and 12,879,288.40

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Solution

The fourth proportional to 21,977,208.40, 32,979,809.40 and 12,879,288.40 is: 19,327,135.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,977,208.40 : 32,979,809.40 = 12,879,288.40 : x
  2. Step 2: Convert to fraction form
    21,977,208.40/32,979,809.40 = 12,879,288.40/x
  3. Step 3: Cross multiply
    21,977,208.40x = 32,979,809.40 × 12,879,288.40
  4. Step 4: Simplify right side
    21,977,208.40x = 424,756,476,639,630.94
  5. Step 5: Solve for x
    x = 424,756,476,639,630.94/21,977,208.40
  6. Step 6: Final answer
    x = 19,327,135.14

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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.