Home / 20,645,467.32-28,489,131.18-11,477,551.80

Finding the Fourth Proportional to 20,645,467.32, 28,489,131.18 and 11,477,551.80

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Solution

The fourth proportional to 20,645,467.32, 28,489,131.18 and 11,477,551.80 is: 15,838,124.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645,467.32 : 28,489,131.18 = 11,477,551.80 : x
  2. Step 2: Convert to fraction form
    20,645,467.32/28,489,131.18 = 11,477,551.80/x
  3. Step 3: Cross multiply
    20,645,467.32x = 28,489,131.18 × 11,477,551.80
  4. Step 4: Simplify right side
    20,645,467.32x = 326,985,478,855,445.12
  5. Step 5: Solve for x
    x = 326,985,478,855,445.12/20,645,467.32
  6. Step 6: Final answer
    x = 15,838,124.36

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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.