Home / 13,867,723.81-19,132,811.49-7,987,240.45

Finding the Fourth Proportional to 13,867,723.81, 19,132,811.49 and 7,987,240.45

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Solution

The fourth proportional to 13,867,723.81, 19,132,811.49 and 7,987,240.45 is: 11,019,715.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867,723.81 : 19,132,811.49 = 7,987,240.45 : x
  2. Step 2: Convert to fraction form
    13,867,723.81/19,132,811.49 = 7,987,240.45/x
  3. Step 3: Cross multiply
    13,867,723.81x = 19,132,811.49 × 7,987,240.45
  4. Step 4: Simplify right side
    13,867,723.81x = 152,818,365,855,152.75
  5. Step 5: Solve for x
    x = 152,818,365,855,152.75/13,867,723.81
  6. Step 6: Final answer
    x = 11,019,715.13

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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.