Home / 1,131,036,507.70-1,696,554,761.55-313,148,808.70

Finding the Fourth Proportional to 1,131,036,507.70, 1,696,554,761.55 and 313,148,808.70

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Solution

The fourth proportional to 1,131,036,507.70, 1,696,554,761.55 and 313,148,808.70 is: 469,723,213.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,036,507.70 : 1,696,554,761.55 = 313,148,808.70 : x
  2. Step 2: Convert to fraction form
    1,131,036,507.70/1,696,554,761.55 = 313,148,808.70/x
  3. Step 3: Cross multiply
    1,131,036,507.70x = 1,696,554,761.55 × 313,148,808.70
  4. Step 4: Simplify right side
    1,131,036,507.70x = 531,274,102,473,695,040
  5. Step 5: Solve for x
    x = 531,274,102,473,695,040/1,131,036,507.70
  6. Step 6: Final answer
    x = 469,723,213.05

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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.