Home / 721,352,671.59-995,382,705.83-403,830,304.56

Finding the Fourth Proportional to 721,352,671.59, 995,382,705.83 and 403,830,304.56

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Solution

The fourth proportional to 721,352,671.59, 995,382,705.83 and 403,830,304.56 is: 557,238,805.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,352,671.59 : 995,382,705.83 = 403,830,304.56 : x
  2. Step 2: Convert to fraction form
    721,352,671.59/995,382,705.83 = 403,830,304.56/x
  3. Step 3: Cross multiply
    721,352,671.59x = 995,382,705.83 × 403,830,304.56
  4. Step 4: Simplify right side
    721,352,671.59x = 401,965,701,247,066,688
  5. Step 5: Solve for x
    x = 401,965,701,247,066,688/721,352,671.59
  6. Step 6: Final answer
    x = 557,238,805.76

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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.