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Finding the Fourth Proportional to 388,861,808.80, 583,218,063.60 and 116,241,469.60

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Solution

The fourth proportional to 388,861,808.80, 583,218,063.60 and 116,241,469.60 is: 174,339,889.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,861,808.80 : 583,218,063.60 = 116,241,469.60 : x
  2. Step 2: Convert to fraction form
    388,861,808.80/583,218,063.60 = 116,241,469.60/x
  3. Step 3: Cross multiply
    388,861,808.80x = 583,218,063.60 × 116,241,469.60
  4. Step 4: Simplify right side
    388,861,808.80x = 67,794,124,810,130,264
  5. Step 5: Solve for x
    x = 67,794,124,810,130,264/388,861,808.80
  6. Step 6: Final answer
    x = 174,339,889.59

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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.