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Finding the Fourth Proportional to 404,331,395.76, 557,977,434.84 and 228,156,728.40

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Solution

The fourth proportional to 404,331,395.76, 557,977,434.84 and 228,156,728.40 is: 314,856,346.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,331,395.76 : 557,977,434.84 = 228,156,728.40 : x
  2. Step 2: Convert to fraction form
    404,331,395.76/557,977,434.84 = 228,156,728.40/x
  3. Step 3: Cross multiply
    404,331,395.76x = 557,977,434.84 × 228,156,728.40
  4. Step 4: Simplify right side
    404,331,395.76x = 127,306,306,054,118,592
  5. Step 5: Solve for x
    x = 127,306,306,054,118,592/404,331,395.76
  6. Step 6: Final answer
    x = 314,856,346.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.