Home / 21,260,359.80-31,890,539.70-7,795,438.20

Finding the Fourth Proportional to 21,260,359.80, 31,890,539.70 and 7,795,438.20

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Solution

The fourth proportional to 21,260,359.80, 31,890,539.70 and 7,795,438.20 is: 11,693,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260,359.80 : 31,890,539.70 = 7,795,438.20 : x
  2. Step 2: Convert to fraction form
    21,260,359.80/31,890,539.70 = 7,795,438.20/x
  3. Step 3: Cross multiply
    21,260,359.80x = 31,890,539.70 × 7,795,438.20
  4. Step 4: Simplify right side
    21,260,359.80x = 248,600,731,395,996.53
  5. Step 5: Solve for x
    x = 248,600,731,395,996.53/21,260,359.80
  6. Step 6: Final answer
    x = 11,693,157.30

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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.