Home / 386,207,313.60-579,982,816.80-204,808,785.60

Finding the Fourth Proportional to 386,207,313.60, 579,982,816.80 and 204,808,785.60

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Solution

The fourth proportional to 386,207,313.60, 579,982,816.80 and 204,808,785.60 is: 307,569,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,207,313.60 : 579,982,816.80 = 204,808,785.60 : x
  2. Step 2: Convert to fraction form
    386,207,313.60/579,982,816.80 = 204,808,785.60/x
  3. Step 3: Cross multiply
    386,207,313.60x = 579,982,816.80 × 204,808,785.60
  4. Step 4: Simplify right side
    386,207,313.60x = 118,785,576,377,675,264
  5. Step 5: Solve for x
    x = 118,785,576,377,675,264/386,207,313.60
  6. Step 6: Final answer
    x = 307,569,463.85

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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.