Home / 1,487,383,312.92-2,231,347,372.95-613,507,972.20

Finding the Fourth Proportional to 1,487,383,312.92, 2,231,347,372.95 and 613,507,972.20

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Solution

The fourth proportional to 1,487,383,312.92, 2,231,347,372.95 and 613,507,972.20 is: 920,374,317.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,383,312.92 : 2,231,347,372.95 = 613,507,972.20 : x
  2. Step 2: Convert to fraction form
    1,487,383,312.92/2,231,347,372.95 = 613,507,972.20/x
  3. Step 3: Cross multiply
    1,487,383,312.92x = 2,231,347,372.95 × 613,507,972.20
  4. Step 4: Simplify right side
    1,487,383,312.92x = 1,368,949,402,052,351,744
  5. Step 5: Solve for x
    x = 1,368,949,402,052,351,744/1,487,383,312.92
  6. Step 6: Final answer
    x = 920,374,317.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.