Home / 218,681,900-301,787,320.56-120,903,054.56

Finding the Fourth Proportional to 218,681,900, 301,787,320.56 and 120,903,054.56

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Solution

The fourth proportional to 218,681,900, 301,787,320.56 and 120,903,054.56 is: 166,849,697.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,681,900 : 301,787,320.56 = 120,903,054.56 : x
  2. Step 2: Convert to fraction form
    218,681,900/301,787,320.56 = 120,903,054.56/x
  3. Step 3: Cross multiply
    218,681,900x = 301,787,320.56 × 120,903,054.56
  4. Step 4: Simplify right side
    218,681,900x = 36,487,008,883,181,888
  5. Step 5: Solve for x
    x = 36,487,008,883,181,888/218,681,900
  6. Step 6: Final answer
    x = 166,849,697.59

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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.