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Finding the Fourth Proportional to 217,801,064.10, 305,148,237.90 and 217,801,064.10

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Solution

The fourth proportional to 217,801,064.10, 305,148,237.90 and 217,801,064.10 is: 305,148,237.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,801,064.10 : 305,148,237.90 = 217,801,064.10 : x
  2. Step 2: Convert to fraction form
    217,801,064.10/305,148,237.90 = 217,801,064.10/x
  3. Step 3: Cross multiply
    217,801,064.10x = 305,148,237.90 × 217,801,064.10
  4. Step 4: Simplify right side
    217,801,064.10x = 66,461,610,922,859,944
  5. Step 5: Solve for x
    x = 66,461,610,922,859,944/217,801,064.10
  6. Step 6: Final answer
    x = 305,148,237.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.