Home / 155,339,253-214,373,314.62-84,778,715.88

Finding the Fourth Proportional to 155,339,253, 214,373,314.62 and 84,778,715.88

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Solution

The fourth proportional to 155,339,253, 214,373,314.62 and 84,778,715.88 is: 116,997,436.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,339,253 : 214,373,314.62 = 84,778,715.88 : x
  2. Step 2: Convert to fraction form
    155,339,253/214,373,314.62 = 84,778,715.88/x
  3. Step 3: Cross multiply
    155,339,253x = 214,373,314.62 × 84,778,715.88
  4. Step 4: Simplify right side
    155,339,253x = 18,174,294,332,422,828
  5. Step 5: Solve for x
    x = 18,174,294,332,422,828/155,339,253
  6. Step 6: Final answer
    x = 116,997,436.14

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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.