Home / 218,681,895-301,787,313.66-120,903,049.56

Finding the Fourth Proportional to 218,681,895, 301,787,313.66 and 120,903,049.56

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Solution

The fourth proportional to 218,681,895, 301,787,313.66 and 120,903,049.56 is: 166,849,690.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,681,895 : 301,787,313.66 = 120,903,049.56 : x
  2. Step 2: Convert to fraction form
    218,681,895/301,787,313.66 = 120,903,049.56/x
  3. Step 3: Cross multiply
    218,681,895x = 301,787,313.66 × 120,903,049.56
  4. Step 4: Simplify right side
    218,681,895x = 36,487,006,540,014,248
  5. Step 5: Solve for x
    x = 36,487,006,540,014,248/218,681,895
  6. Step 6: Final answer
    x = 166,849,690.69

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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.