Home / 415,430,154.80-623,145,232.20-200,439,306.80

Finding the Fourth Proportional to 415,430,154.80, 623,145,232.20 and 200,439,306.80

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Solution

The fourth proportional to 415,430,154.80, 623,145,232.20 and 200,439,306.80 is: 300,658,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,430,154.80 : 623,145,232.20 = 200,439,306.80 : x
  2. Step 2: Convert to fraction form
    415,430,154.80/623,145,232.20 = 200,439,306.80/x
  3. Step 3: Cross multiply
    415,430,154.80x = 623,145,232.20 × 200,439,306.80
  4. Step 4: Simplify right side
    415,430,154.80x = 124,902,798,377,893,056
  5. Step 5: Solve for x
    x = 124,902,798,377,893,056/415,430,154.80
  6. Step 6: Final answer
    x = 300,658,960.20

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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.