Home / 13,300,870.95-18,355,191.75-7,189,299.45

Finding the Fourth Proportional to 13,300,870.95, 18,355,191.75 and 7,189,299.45

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Solution

The fourth proportional to 13,300,870.95, 18,355,191.75 and 7,189,299.45 is: 9,921,227.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300,870.95 : 18,355,191.75 = 7,189,299.45 : x
  2. Step 2: Convert to fraction form
    13,300,870.95/18,355,191.75 = 7,189,299.45/x
  3. Step 3: Cross multiply
    13,300,870.95x = 18,355,191.75 × 7,189,299.45
  4. Step 4: Simplify right side
    13,300,870.95x = 131,960,969,952,919.55
  5. Step 5: Solve for x
    x = 131,960,969,952,919.55/13,300,870.95
  6. Step 6: Final answer
    x = 9,921,227.75

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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.