Home / 480,379,909.32-720,310,864.86-259,169,816.52

Finding the Fourth Proportional to 480,379,909.32, 720,310,864.86 and 259,169,816.52

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Solution

The fourth proportional to 480,379,909.32, 720,310,864.86 and 259,169,816.52 is: 388,614,992.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,379,909.32 : 720,310,864.86 = 259,169,816.52 : x
  2. Step 2: Convert to fraction form
    480,379,909.32/720,310,864.86 = 259,169,816.52/x
  3. Step 3: Cross multiply
    480,379,909.32x = 720,310,864.86 × 259,169,816.52
  4. Step 4: Simplify right side
    480,379,909.32x = 186,682,834,683,128,736
  5. Step 5: Solve for x
    x = 186,682,834,683,128,736/480,379,909.32
  6. Step 6: Final answer
    x = 388,614,992.14

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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.