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Finding the Fourth Proportional to 564,300,361.90, 778,744,123.03 and 309,992,438.91

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Solution

The fourth proportional to 564,300,361.90, 778,744,123.03 and 309,992,438.91 is: 427,794,852.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,300,361.90 : 778,744,123.03 = 309,992,438.91 : x
  2. Step 2: Convert to fraction form
    564,300,361.90/778,744,123.03 = 309,992,438.91/x
  3. Step 3: Cross multiply
    564,300,361.90x = 778,744,123.03 × 309,992,438.91
  4. Step 4: Simplify right side
    564,300,361.90x = 241,404,789,986,455,104
  5. Step 5: Solve for x
    x = 241,404,789,986,455,104/564,300,361.90
  6. Step 6: Final answer
    x = 427,794,852.32

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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.