Home / 1,186,816,577.30-1,780,388,571.93-689,061,508.31

Finding the Fourth Proportional to 1,186,816,577.30, 1,780,388,571.93 and 689,061,508.31

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Solution

The fourth proportional to 1,186,816,577.30, 1,780,388,571.93 and 689,061,508.31 is: 1,033,687,309.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,816,577.30 : 1,780,388,571.93 = 689,061,508.31 : x
  2. Step 2: Convert to fraction form
    1,186,816,577.30/1,780,388,571.93 = 689,061,508.31/x
  3. Step 3: Cross multiply
    1,186,816,577.30x = 1,780,388,571.93 × 689,061,508.31
  4. Step 4: Simplify right side
    1,186,816,577.30x = 1,226,797,234,749,353,472
  5. Step 5: Solve for x
    x = 1,226,797,234,749,353,472/1,186,816,577.30
  6. Step 6: Final answer
    x = 1,033,687,309.57

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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.