Home / 9,120,178.13-12,586,005.74-4,990,571.05

Finding the Fourth Proportional to 9,120,178.13, 12,586,005.74 and 4,990,571.05

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Solution

The fourth proportional to 9,120,178.13, 12,586,005.74 and 4,990,571.05 is: 6,887,075.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120,178.13 : 12,586,005.74 = 4,990,571.05 : x
  2. Step 2: Convert to fraction form
    9,120,178.13/12,586,005.74 = 4,990,571.05/x
  3. Step 3: Cross multiply
    9,120,178.13x = 12,586,005.74 × 4,990,571.05
  4. Step 4: Simplify right side
    9,120,178.13x = 62,811,355,822,317.90
  5. Step 5: Solve for x
    x = 62,811,355,822,317.90/9,120,178.13
  6. Step 6: Final answer
    x = 6,887,075.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.