Home / 769,716,985.80-1,154,575,478.70-252,164,310.60

Finding the Fourth Proportional to 769,716,985.80, 1,154,575,478.70 and 252,164,310.60

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Solution

The fourth proportional to 769,716,985.80, 1,154,575,478.70 and 252,164,310.60 is: 378,246,465.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,716,985.80 : 1,154,575,478.70 = 252,164,310.60 : x
  2. Step 2: Convert to fraction form
    769,716,985.80/1,154,575,478.70 = 252,164,310.60/x
  3. Step 3: Cross multiply
    769,716,985.80x = 1,154,575,478.70 × 252,164,310.60
  4. Step 4: Simplify right side
    769,716,985.80x = 291,142,729,622,050,496
  5. Step 5: Solve for x
    x = 291,142,729,622,050,496/769,716,985.80
  6. Step 6: Final answer
    x = 378,246,465.90

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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.