Home / 21,312,077.60-31,968,116.40-7,846,119.20

Finding the Fourth Proportional to 21,312,077.60, 31,968,116.40 and 7,846,119.20

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Solution

The fourth proportional to 21,312,077.60, 31,968,116.40 and 7,846,119.20 is: 11,769,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,077.60 : 31,968,116.40 = 7,846,119.20 : x
  2. Step 2: Convert to fraction form
    21,312,077.60/31,968,116.40 = 7,846,119.20/x
  3. Step 3: Cross multiply
    21,312,077.60x = 31,968,116.40 × 7,846,119.20
  4. Step 4: Simplify right side
    21,312,077.60x = 250,825,651,873,874.88
  5. Step 5: Solve for x
    x = 250,825,651,873,874.88/21,312,077.60
  6. Step 6: Final answer
    x = 11,769,178.80

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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.