Home / 20,651,994.40-30,977,991.60-9,890,314.15

Finding the Fourth Proportional to 20,651,994.40, 30,977,991.60 and 9,890,314.15

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Solution

The fourth proportional to 20,651,994.40, 30,977,991.60 and 9,890,314.15 is: 14,835,471.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,651,994.40 : 30,977,991.60 = 9,890,314.15 : x
  2. Step 2: Convert to fraction form
    20,651,994.40/30,977,991.60 = 9,890,314.15/x
  3. Step 3: Cross multiply
    20,651,994.40x = 30,977,991.60 × 9,890,314.15
  4. Step 4: Simplify right side
    20,651,994.40x = 306,382,068,660,061.19
  5. Step 5: Solve for x
    x = 306,382,068,660,061.19/20,651,994.40
  6. Step 6: Final answer
    x = 14,835,471.23

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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.