Home / 629,745,535.37-869,363,467.62-391,667,459.06

Finding the Fourth Proportional to 629,745,535.37, 869,363,467.62 and 391,667,459.06

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Solution

The fourth proportional to 629,745,535.37, 869,363,467.62 and 391,667,459.06 is: 540,696,775.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,745,535.37 : 869,363,467.62 = 391,667,459.06 : x
  2. Step 2: Convert to fraction form
    629,745,535.37/869,363,467.62 = 391,667,459.06/x
  3. Step 3: Cross multiply
    629,745,535.37x = 869,363,467.62 × 391,667,459.06
  4. Step 4: Simplify right side
    629,745,535.37x = 340,501,380,363,001,024
  5. Step 5: Solve for x
    x = 340,501,380,363,001,024/629,745,535.37
  6. Step 6: Final answer
    x = 540,696,775.50

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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.