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Finding the Fourth Proportional to 392,202,605.60, 588,303,908.40 and 133,709,703.20

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Solution

The fourth proportional to 392,202,605.60, 588,303,908.40 and 133,709,703.20 is: 200,564,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,202,605.60 : 588,303,908.40 = 133,709,703.20 : x
  2. Step 2: Convert to fraction form
    392,202,605.60/588,303,908.40 = 133,709,703.20/x
  3. Step 3: Cross multiply
    392,202,605.60x = 588,303,908.40 × 133,709,703.20
  4. Step 4: Simplify right side
    392,202,605.60x = 78,661,940,983,563,984
  5. Step 5: Solve for x
    x = 78,661,940,983,563,984/392,202,605.60
  6. Step 6: Final answer
    x = 200,564,554.80

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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.