Home / 862,657,115.20-1,293,985,672.80-536,139,764.80

Finding the Fourth Proportional to 862,657,115.20, 1,293,985,672.80 and 536,139,764.80

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Solution

The fourth proportional to 862,657,115.20, 1,293,985,672.80 and 536,139,764.80 is: 804,209,647.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,657,115.20 : 1,293,985,672.80 = 536,139,764.80 : x
  2. Step 2: Convert to fraction form
    862,657,115.20/1,293,985,672.80 = 536,139,764.80/x
  3. Step 3: Cross multiply
    862,657,115.20x = 1,293,985,672.80 × 536,139,764.80
  4. Step 4: Simplify right side
    862,657,115.20x = 693,757,174,269,561,728
  5. Step 5: Solve for x
    x = 693,757,174,269,561,728/862,657,115.20
  6. Step 6: Final answer
    x = 804,209,647.20

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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.