Home / 839,723,136.72-1,159,048,416.60-487,412,631.24

Finding the Fourth Proportional to 839,723,136.72, 1,159,048,416.60 and 487,412,631.24

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Solution

The fourth proportional to 839,723,136.72, 1,159,048,416.60 and 487,412,631.24 is: 672,763,216.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,723,136.72 : 1,159,048,416.60 = 487,412,631.24 : x
  2. Step 2: Convert to fraction form
    839,723,136.72/1,159,048,416.60 = 487,412,631.24/x
  3. Step 3: Cross multiply
    839,723,136.72x = 1,159,048,416.60 × 487,412,631.24
  4. Step 4: Simplify right side
    839,723,136.72x = 564,934,838,469,561,664
  5. Step 5: Solve for x
    x = 564,934,838,469,561,664/839,723,136.72
  6. Step 6: Final answer
    x = 672,763,216.55

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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.