Home / 20,804,075.90-31,206,211.05-7,340,903.90

Finding the Fourth Proportional to 20,804,075.90, 31,206,211.05 and 7,340,903.90

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Solution

The fourth proportional to 20,804,075.90, 31,206,211.05 and 7,340,903.90 is: 11,011,390.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804,075.90 : 31,206,211.05 = 7,340,903.90 : x
  2. Step 2: Convert to fraction form
    20,804,075.90/31,206,211.05 = 7,340,903.90/x
  3. Step 3: Cross multiply
    20,804,075.90x = 31,206,211.05 × 7,340,903.90
  4. Step 4: Simplify right side
    20,804,075.90x = 229,081,796,401,168.12
  5. Step 5: Solve for x
    x = 229,081,796,401,168.12/20,804,075.90
  6. Step 6: Final answer
    x = 11,011,390.15

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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.