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Finding the Fourth Proportional to 651,802,710.80, 899,469,803.04 and 358,447,278.80

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Solution

The fourth proportional to 651,802,710.80, 899,469,803.04 and 358,447,278.80 is: 494,647,380.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,802,710.80 : 899,469,803.04 = 358,447,278.80 : x
  2. Step 2: Convert to fraction form
    651,802,710.80/899,469,803.04 = 358,447,278.80/x
  3. Step 3: Cross multiply
    651,802,710.80x = 899,469,803.04 × 358,447,278.80
  4. Step 4: Simplify right side
    651,802,710.80x = 322,412,503,257,962,624
  5. Step 5: Solve for x
    x = 322,412,503,257,962,624/651,802,710.80
  6. Step 6: Final answer
    x = 494,647,380.13

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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.