Home / 691,543,142.85-1,037,387,378.39-225,240,877.58

Finding the Fourth Proportional to 691,543,142.85, 1,037,387,378.39 and 225,240,877.58

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Solution

The fourth proportional to 691,543,142.85, 1,037,387,378.39 and 225,240,877.58 is: 337,884,983.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,543,142.85 : 1,037,387,378.39 = 225,240,877.58 : x
  2. Step 2: Convert to fraction form
    691,543,142.85/1,037,387,378.39 = 225,240,877.58/x
  3. Step 3: Cross multiply
    691,543,142.85x = 1,037,387,378.39 × 225,240,877.58
  4. Step 4: Simplify right side
    691,543,142.85x = 233,662,043,501,411,136
  5. Step 5: Solve for x
    x = 233,662,043,501,411,136/691,543,142.85
  6. Step 6: Final answer
    x = 337,884,983.63

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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.