Home / 12,478,716.80-18,702,328.80-6,075,180.80

Finding the Fourth Proportional to 12,478,716.80, 18,702,328.80 and 6,075,180.80

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Solution

The fourth proportional to 12,478,716.80, 18,702,328.80 and 6,075,180.80 is: 9,105,105.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,716.80 : 18,702,328.80 = 6,075,180.80 : x
  2. Step 2: Convert to fraction form
    12,478,716.80/18,702,328.80 = 6,075,180.80/x
  3. Step 3: Cross multiply
    12,478,716.80x = 18,702,328.80 × 6,075,180.80
  4. Step 4: Simplify right side
    12,478,716.80x = 113,620,028,841,047.05
  5. Step 5: Solve for x
    x = 113,620,028,841,047.05/12,478,716.80
  6. Step 6: Final answer
    x = 9,105,105.17

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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.