Home / 21,456,069.60-32,184,104.40-7,990,111.20

Finding the Fourth Proportional to 21,456,069.60, 32,184,104.40 and 7,990,111.20

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Solution

The fourth proportional to 21,456,069.60, 32,184,104.40 and 7,990,111.20 is: 11,985,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,069.60 : 32,184,104.40 = 7,990,111.20 : x
  2. Step 2: Convert to fraction form
    21,456,069.60/32,184,104.40 = 7,990,111.20/x
  3. Step 3: Cross multiply
    21,456,069.60x = 32,184,104.40 × 7,990,111.20
  4. Step 4: Simplify right side
    21,456,069.60x = 257,154,573,028,409.28
  5. Step 5: Solve for x
    x = 257,154,573,028,409.28/21,456,069.60
  6. Step 6: Final answer
    x = 11,985,166.80

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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.