Home / 415,391,554.85-623,120,325.89-139,044,227.78

Finding the Fourth Proportional to 415,391,554.85, 623,120,325.89 and 139,044,227.78

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Solution

The fourth proportional to 415,391,554.85, 623,120,325.89 and 139,044,227.78 is: 208,577,385.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,391,554.85 : 623,120,325.89 = 139,044,227.78 : x
  2. Step 2: Convert to fraction form
    415,391,554.85/623,120,325.89 = 139,044,227.78/x
  3. Step 3: Cross multiply
    415,391,554.85x = 623,120,325.89 × 139,044,227.78
  4. Step 4: Simplify right side
    415,391,554.85x = 86,641,284,523,586,176
  5. Step 5: Solve for x
    x = 86,641,284,523,586,176/415,391,554.85
  6. Step 6: Final answer
    x = 208,577,385.63

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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.