Home / 21,011,012.08-28,995,640.36-11,843,652.40

Finding the Fourth Proportional to 21,011,012.08, 28,995,640.36 and 11,843,652.40

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Solution

The fourth proportional to 21,011,012.08, 28,995,640.36 and 11,843,652.40 is: 16,344,490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011,012.08 : 28,995,640.36 = 11,843,652.40 : x
  2. Step 2: Convert to fraction form
    21,011,012.08/28,995,640.36 = 11,843,652.40/x
  3. Step 3: Cross multiply
    21,011,012.08x = 28,995,640.36 × 11,843,652.40
  4. Step 4: Simplify right side
    21,011,012.08x = 343,414,285,539,250.88
  5. Step 5: Solve for x
    x = 343,414,285,539,250.88/21,011,012.08
  6. Step 6: Final answer
    x = 16,344,490.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.