Home / 1,247,631,272.19-1,721,731,562.24-683,151,927.64

Finding the Fourth Proportional to 1,247,631,272.19, 1,721,731,562.24 and 683,151,927.64

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Solution

The fourth proportional to 1,247,631,272.19, 1,721,731,562.24 and 683,151,927.64 is: 942,749,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,631,272.19 : 1,721,731,562.24 = 683,151,927.64 : x
  2. Step 2: Convert to fraction form
    1,247,631,272.19/1,721,731,562.24 = 683,151,927.64/x
  3. Step 3: Cross multiply
    1,247,631,272.19x = 1,721,731,562.24 × 683,151,927.64
  4. Step 4: Simplify right side
    1,247,631,272.19x = 1,176,204,235,621,898,240
  5. Step 5: Solve for x
    x = 1,176,204,235,621,898,240/1,247,631,272.19
  6. Step 6: Final answer
    x = 942,749,882.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.