Home / 61,209,012.70-91,796,475.83-20,271,643.97

Finding the Fourth Proportional to 61,209,012.70, 91,796,475.83 and 20,271,643.97

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Solution

The fourth proportional to 61,209,012.70, 91,796,475.83 and 20,271,643.97 is: 30,401,821.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,209,012.70 : 91,796,475.83 = 20,271,643.97 : x
  2. Step 2: Convert to fraction form
    61,209,012.70/91,796,475.83 = 20,271,643.97/x
  3. Step 3: Cross multiply
    61,209,012.70x = 91,796,475.83 × 20,271,643.97
  4. Step 4: Simplify right side
    61,209,012.70x = 1,860,865,475,811,550.75
  5. Step 5: Solve for x
    x = 1,860,865,475,811,550.75/61,209,012.70
  6. Step 6: Final answer
    x = 30,401,821.46

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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.