Home / 201,601,593.90-302,189,814.45-78,732,434.70

Finding the Fourth Proportional to 201,601,593.90, 302,189,814.45 and 78,732,434.70

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Solution

The fourth proportional to 201,601,593.90, 302,189,814.45 and 78,732,434.70 is: 118,015,633.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,601,593.90 : 302,189,814.45 = 78,732,434.70 : x
  2. Step 2: Convert to fraction form
    201,601,593.90/302,189,814.45 = 78,732,434.70/x
  3. Step 3: Cross multiply
    201,601,593.90x = 302,189,814.45 × 78,732,434.70
  4. Step 4: Simplify right side
    201,601,593.90x = 23,792,139,833,189,740
  5. Step 5: Solve for x
    x = 23,792,139,833,189,740/201,601,593.90
  6. Step 6: Final answer
    x = 118,015,633.57

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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.