Home / 458,870,544.38-687,815,697.53-261,709,476.32

Finding the Fourth Proportional to 458,870,544.38, 687,815,697.53 and 261,709,476.32

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Solution

The fourth proportional to 458,870,544.38, 687,815,697.53 and 261,709,476.32 is: 392,284,682.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,870,544.38 : 687,815,697.53 = 261,709,476.32 : x
  2. Step 2: Convert to fraction form
    458,870,544.38/687,815,697.53 = 261,709,476.32/x
  3. Step 3: Cross multiply
    458,870,544.38x = 687,815,697.53 × 261,709,476.32
  4. Step 4: Simplify right side
    458,870,544.38x = 180,007,886,001,812,736
  5. Step 5: Solve for x
    x = 180,007,886,001,812,736/458,870,544.38
  6. Step 6: Final answer
    x = 392,284,682.92

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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.