Home / 1,241,557,285.91-1,862,965,686.32-688,757,672.12

Finding the Fourth Proportional to 1,241,557,285.91, 1,862,965,686.32 and 688,757,672.12

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Solution

The fourth proportional to 1,241,557,285.91, 1,862,965,686.32 and 688,757,672.12 is: 1,033,485,868.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,557,285.91 : 1,862,965,686.32 = 688,757,672.12 : x
  2. Step 2: Convert to fraction form
    1,241,557,285.91/1,862,965,686.32 = 688,757,672.12/x
  3. Step 3: Cross multiply
    1,241,557,285.91x = 1,862,965,686.32 × 688,757,672.12
  4. Step 4: Simplify right side
    1,241,557,285.91x = 1,283,131,909,336,442,880
  5. Step 5: Solve for x
    x = 1,283,131,909,336,442,880/1,241,557,285.91
  6. Step 6: Final answer
    x = 1,033,485,868.03

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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.