Home / 699,019,199.48-964,669,664.76-381,496,831.82

Finding the Fourth Proportional to 699,019,199.48, 964,669,664.76 and 381,496,831.82

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Solution

The fourth proportional to 699,019,199.48, 964,669,664.76 and 381,496,831.82 is: 526,478,272.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,019,199.48 : 964,669,664.76 = 381,496,831.82 : x
  2. Step 2: Convert to fraction form
    699,019,199.48/964,669,664.76 = 381,496,831.82/x
  3. Step 3: Cross multiply
    699,019,199.48x = 964,669,664.76 × 381,496,831.82
  4. Step 4: Simplify right side
    699,019,199.48x = 368,018,420,858,801,472
  5. Step 5: Solve for x
    x = 368,018,420,858,801,472/699,019,199.48
  6. Step 6: Final answer
    x = 526,478,272.89

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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.