Home / 458,870,544.45-687,815,697.66-261,709,476.39

Finding the Fourth Proportional to 458,870,544.45, 687,815,697.66 and 261,709,476.39

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Solution

The fourth proportional to 458,870,544.45, 687,815,697.66 and 261,709,476.39 is: 392,284,683.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,870,544.45 : 687,815,697.66 = 261,709,476.39 : x
  2. Step 2: Convert to fraction form
    458,870,544.45/687,815,697.66 = 261,709,476.39/x
  3. Step 3: Cross multiply
    458,870,544.45x = 687,815,697.66 × 261,709,476.39
  4. Step 4: Simplify right side
    458,870,544.45x = 180,007,886,086,439,712
  5. Step 5: Solve for x
    x = 180,007,886,086,439,712/458,870,544.45
  6. Step 6: Final answer
    x = 392,284,683.04

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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.