Home / 699,913,100.67-965,909,422.26-402,555,425.73

Finding the Fourth Proportional to 699,913,100.67, 965,909,422.26 and 402,555,425.73

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Solution

The fourth proportional to 699,913,100.67, 965,909,422.26 and 402,555,425.73 is: 555,543,364.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,913,100.67 : 965,909,422.26 = 402,555,425.73 : x
  2. Step 2: Convert to fraction form
    699,913,100.67/965,909,422.26 = 402,555,425.73/x
  3. Step 3: Cross multiply
    699,913,100.67x = 965,909,422.26 × 402,555,425.73
  4. Step 4: Simplify right side
    699,913,100.67x = 388,832,078,694,492,672
  5. Step 5: Solve for x
    x = 388,832,078,694,492,672/699,913,100.67
  6. Step 6: Final answer
    x = 555,543,364.34

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Double scale
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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.