Home / 1,373,621,691.30-1,896,091,003.36-816,703,409.76

Finding the Fourth Proportional to 1,373,621,691.30, 1,896,091,003.36 and 816,703,409.76

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Solution

The fourth proportional to 1,373,621,691.30, 1,896,091,003.36 and 816,703,409.76 is: 1,127,343,865.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,621,691.30 : 1,896,091,003.36 = 816,703,409.76 : x
  2. Step 2: Convert to fraction form
    1,373,621,691.30/1,896,091,003.36 = 816,703,409.76/x
  3. Step 3: Cross multiply
    1,373,621,691.30x = 1,896,091,003.36 × 816,703,409.76
  4. Step 4: Simplify right side
    1,373,621,691.30x = 1,548,543,987,659,371,520
  5. Step 5: Solve for x
    x = 1,548,543,987,659,371,520/1,373,621,691.30
  6. Step 6: Final answer
    x = 1,127,343,865.83

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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.