Home / 15,284,646.40-21,092,811.04-8,408,980.80

Finding the Fourth Proportional to 15,284,646.40, 21,092,811.04 and 8,408,980.80

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Solution

The fourth proportional to 15,284,646.40, 21,092,811.04 and 8,408,980.80 is: 11,604,392.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,284,646.40 : 21,092,811.04 = 8,408,980.80 : x
  2. Step 2: Convert to fraction form
    15,284,646.40/21,092,811.04 = 8,408,980.80/x
  3. Step 3: Cross multiply
    15,284,646.40x = 21,092,811.04 × 8,408,980.80
  4. Step 4: Simplify right side
    15,284,646.40x = 177,369,043,053,388.03
  5. Step 5: Solve for x
    x = 177,369,043,053,388.03/15,284,646.40
  6. Step 6: Final answer
    x = 11,604,392.96

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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.