Home / 1,317,370,770.42-1,817,974,422.59-722,660,057.25

Finding the Fourth Proportional to 1,317,370,770.42, 1,817,974,422.59 and 722,660,057.25

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Solution

The fourth proportional to 1,317,370,770.42, 1,817,974,422.59 and 722,660,057.25 is: 997,272,392.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,370,770.42 : 1,817,974,422.59 = 722,660,057.25 : x
  2. Step 2: Convert to fraction form
    1,317,370,770.42/1,817,974,422.59 = 722,660,057.25/x
  3. Step 3: Cross multiply
    1,317,370,770.42x = 1,817,974,422.59 × 722,660,057.25
  4. Step 4: Simplify right side
    1,317,370,770.42x = 1,313,777,500,304,311,808
  5. Step 5: Solve for x
    x = 1,313,777,500,304,311,808/1,317,370,770.42
  6. Step 6: Final answer
    x = 997,272,392.71

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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.