Home / 7,385,119.77-10,191,978.80-4,122,571.40

Finding the Fourth Proportional to 7,385,119.77, 10,191,978.80 and 4,122,571.40

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Solution

The fourth proportional to 7,385,119.77, 10,191,978.80 and 4,122,571.40 is: 5,689,435.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385,119.77 : 10,191,978.80 = 4,122,571.40 : x
  2. Step 2: Convert to fraction form
    7,385,119.77/10,191,978.80 = 4,122,571.40/x
  3. Step 3: Cross multiply
    7,385,119.77x = 10,191,978.80 × 4,122,571.40
  4. Step 4: Simplify right side
    7,385,119.77x = 42,017,160,310,286.32
  5. Step 5: Solve for x
    x = 42,017,160,310,286.32/7,385,119.77
  6. Step 6: Final answer
    x = 5,689,435.19

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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.