Home / 918,961,060.50-1,268,174,357.10-501,275,203.38

Finding the Fourth Proportional to 918,961,060.50, 1,268,174,357.10 and 501,275,203.38

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Solution

The fourth proportional to 918,961,060.50, 1,268,174,357.10 and 501,275,203.38 is: 691,764,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,961,060.50 : 1,268,174,357.10 = 501,275,203.38 : x
  2. Step 2: Convert to fraction form
    918,961,060.50/1,268,174,357.10 = 501,275,203.38/x
  3. Step 3: Cross multiply
    918,961,060.50x = 1,268,174,357.10 × 501,275,203.38
  4. Step 4: Simplify right side
    918,961,060.50x = 635,704,358,776,603,136
  5. Step 5: Solve for x
    x = 635,704,358,776,603,136/918,961,060.50
  6. Step 6: Final answer
    x = 691,764,195.57

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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.