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Finding the Fourth Proportional to 663,868,481, 916,551,957.53 and 422,600,588.39

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Solution

The fourth proportional to 663,868,481, 916,551,957.53 and 422,600,588.39 is: 583,452,005.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,868,481 : 916,551,957.53 = 422,600,588.39 : x
  2. Step 2: Convert to fraction form
    663,868,481/916,551,957.53 = 422,600,588.39/x
  3. Step 3: Cross multiply
    663,868,481x = 916,551,957.53 × 422,600,588.39
  4. Step 4: Simplify right side
    663,868,481x = 387,335,396,542,184,256
  5. Step 5: Solve for x
    x = 387,335,396,542,184,256/663,868,481
  6. Step 6: Final answer
    x = 583,452,005.37

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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.