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Finding the Fourth Proportional to 688,652,850.66, 950,333,198.52 and 375,380,190.96

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Solution

The fourth proportional to 688,652,850.66, 950,333,198.52 and 375,380,190.96 is: 518,020,447.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,652,850.66 : 950,333,198.52 = 375,380,190.96 : x
  2. Step 2: Convert to fraction form
    688,652,850.66/950,333,198.52 = 375,380,190.96/x
  3. Step 3: Cross multiply
    688,652,850.66x = 950,333,198.52 × 375,380,190.96
  4. Step 4: Simplify right side
    688,652,850.66x = 356,736,257,536,065,152
  5. Step 5: Solve for x
    x = 356,736,257,536,065,152/688,652,850.66
  6. Step 6: Final answer
    x = 518,020,447.01

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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.