Home / 142,716,679.60-214,075,019.40-99,669,958.60

Finding the Fourth Proportional to 142,716,679.60, 214,075,019.40 and 99,669,958.60

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Solution

The fourth proportional to 142,716,679.60, 214,075,019.40 and 99,669,958.60 is: 149,504,937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,716,679.60 : 214,075,019.40 = 99,669,958.60 : x
  2. Step 2: Convert to fraction form
    142,716,679.60/214,075,019.40 = 99,669,958.60/x
  3. Step 3: Cross multiply
    142,716,679.60x = 214,075,019.40 × 99,669,958.60
  4. Step 4: Simplify right side
    142,716,679.60x = 21,336,848,320,892,196
  5. Step 5: Solve for x
    x = 21,336,848,320,892,196/142,716,679.60
  6. Step 6: Final answer
    x = 149,504,937.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.