Home / 15,977,129.60-23,965,694.40-13,426,212.80

Finding the Fourth Proportional to 15,977,129.60, 23,965,694.40 and 13,426,212.80

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Solution

The fourth proportional to 15,977,129.60, 23,965,694.40 and 13,426,212.80 is: 20,139,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,977,129.60 : 23,965,694.40 = 13,426,212.80 : x
  2. Step 2: Convert to fraction form
    15,977,129.60/23,965,694.40 = 13,426,212.80/x
  3. Step 3: Cross multiply
    15,977,129.60x = 23,965,694.40 × 13,426,212.80
  4. Step 4: Simplify right side
    15,977,129.60x = 321,768,512,914,168.31
  5. Step 5: Solve for x
    x = 321,768,512,914,168.31/15,977,129.60
  6. Step 6: Final answer
    x = 20,139,319.20

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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.