Home / 664,848,003.70-997,272,005.55-655,778,077.30

Finding the Fourth Proportional to 664,848,003.70, 997,272,005.55 and 655,778,077.30

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Solution

The fourth proportional to 664,848,003.70, 997,272,005.55 and 655,778,077.30 is: 983,667,115.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,848,003.70 : 997,272,005.55 = 655,778,077.30 : x
  2. Step 2: Convert to fraction form
    664,848,003.70/997,272,005.55 = 655,778,077.30/x
  3. Step 3: Cross multiply
    664,848,003.70x = 997,272,005.55 × 655,778,077.30
  4. Step 4: Simplify right side
    664,848,003.70x = 653,989,118,344,693,888
  5. Step 5: Solve for x
    x = 653,989,118,344,693,888/664,848,003.70
  6. Step 6: Final answer
    x = 983,667,115.95

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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.