Home / 856,221,653.70-1,181,683,900.53-479,979,859.68

Finding the Fourth Proportional to 856,221,653.70, 1,181,683,900.53 and 479,979,859.68

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Solution

The fourth proportional to 856,221,653.70, 1,181,683,900.53 and 479,979,859.68 is: 662,427,153.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,221,653.70 : 1,181,683,900.53 = 479,979,859.68 : x
  2. Step 2: Convert to fraction form
    856,221,653.70/1,181,683,900.53 = 479,979,859.68/x
  3. Step 3: Cross multiply
    856,221,653.70x = 1,181,683,900.53 × 479,979,859.68
  4. Step 4: Simplify right side
    856,221,653.70x = 567,184,472,762,504,448
  5. Step 5: Solve for x
    x = 567,184,472,762,504,448/856,221,653.70
  6. Step 6: Final answer
    x = 662,427,153.43

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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.