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Finding the Fourth Proportional to 404,908,305.02, 558,773,999.80 and 219,269,640.86

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Solution

The fourth proportional to 404,908,305.02, 558,773,999.80 and 219,269,640.86 is: 302,592,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,908,305.02 : 558,773,999.80 = 219,269,640.86 : x
  2. Step 2: Convert to fraction form
    404,908,305.02/558,773,999.80 = 219,269,640.86/x
  3. Step 3: Cross multiply
    404,908,305.02x = 558,773,999.80 × 219,269,640.86
  4. Step 4: Simplify right side
    404,908,305.02x = 122,522,174,254,709,664
  5. Step 5: Solve for x
    x = 122,522,174,254,709,664/404,908,305.02
  6. Step 6: Final answer
    x = 302,592,396.20

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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.