Home / 21,456,093.60-32,184,140.40-7,990,135.20

Finding the Fourth Proportional to 21,456,093.60, 32,184,140.40 and 7,990,135.20

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Solution

The fourth proportional to 21,456,093.60, 32,184,140.40 and 7,990,135.20 is: 11,985,202.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,093.60 : 32,184,140.40 = 7,990,135.20 : x
  2. Step 2: Convert to fraction form
    21,456,093.60/32,184,140.40 = 7,990,135.20/x
  3. Step 3: Cross multiply
    21,456,093.60x = 32,184,140.40 × 7,990,135.20
  4. Step 4: Simplify right side
    21,456,093.60x = 257,155,633,091,782.06
  5. Step 5: Solve for x
    x = 257,155,633,091,782.06/21,456,093.60
  6. Step 6: Final answer
    x = 11,985,202.80

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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.