Home / 1,310,554,163.85-1,808,553,998.07-715,839,027.45

Finding the Fourth Proportional to 1,310,554,163.85, 1,808,553,998.07 and 715,839,027.45

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Solution

The fourth proportional to 1,310,554,163.85, 1,808,553,998.07 and 715,839,027.45 is: 987,851,987.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,554,163.85 : 1,808,553,998.07 = 715,839,027.45 : x
  2. Step 2: Convert to fraction form
    1,310,554,163.85/1,808,553,998.07 = 715,839,027.45/x
  3. Step 3: Cross multiply
    1,310,554,163.85x = 1,808,553,998.07 × 715,839,027.45
  4. Step 4: Simplify right side
    1,310,554,163.85x = 1,294,633,535,069,238,016
  5. Step 5: Solve for x
    x = 1,294,633,535,069,238,016/1,310,554,163.85
  6. Step 6: Final answer
    x = 987,851,987.18

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Double scale
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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.