Home / 1,309,844,928.52-1,807,576,642.62-715,129,393.42

Finding the Fourth Proportional to 1,309,844,928.52, 1,807,576,642.62 and 715,129,393.42

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Solution

The fourth proportional to 1,309,844,928.52, 1,807,576,642.62 and 715,129,393.42 is: 986,873,453.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,844,928.52 : 1,807,576,642.62 = 715,129,393.42 : x
  2. Step 2: Convert to fraction form
    1,309,844,928.52/1,807,576,642.62 = 715,129,393.42/x
  3. Step 3: Cross multiply
    1,309,844,928.52x = 1,807,576,642.62 × 715,129,393.42
  4. Step 4: Simplify right side
    1,309,844,928.52x = 1,292,651,187,997,000,448
  5. Step 5: Solve for x
    x = 1,292,651,187,997,000,448/1,309,844,928.52
  6. Step 6: Final answer
    x = 986,873,453.38

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Double scale
Find fourth proportional to 1,309,844,929.52, 1,807,576,644 and 715,129,394.42
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1.5x scale

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.