Home / 570,232,639.44-786,921,042.48-309,472,255.44

Finding the Fourth Proportional to 570,232,639.44, 786,921,042.48 and 309,472,255.44

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Solution

The fourth proportional to 570,232,639.44, 786,921,042.48 and 309,472,255.44 is: 427,071,712.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,232,639.44 : 786,921,042.48 = 309,472,255.44 : x
  2. Step 2: Convert to fraction form
    570,232,639.44/786,921,042.48 = 309,472,255.44/x
  3. Step 3: Cross multiply
    570,232,639.44x = 786,921,042.48 × 309,472,255.44
  4. Step 4: Simplify right side
    570,232,639.44x = 243,530,229,869,481,664
  5. Step 5: Solve for x
    x = 243,530,229,869,481,664/570,232,639.44
  6. Step 6: Final answer
    x = 427,071,712.54

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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.