Home / 721,352,674.09-995,382,709.27-403,830,307.06

Finding the Fourth Proportional to 721,352,674.09, 995,382,709.27 and 403,830,307.06

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Solution

The fourth proportional to 721,352,674.09, 995,382,709.27 and 403,830,307.06 is: 557,238,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,352,674.09 : 995,382,709.27 = 403,830,307.06 : x
  2. Step 2: Convert to fraction form
    721,352,674.09/995,382,709.27 = 403,830,307.06/x
  3. Step 3: Cross multiply
    721,352,674.09x = 995,382,709.27 × 403,830,307.06
  4. Step 4: Simplify right side
    721,352,674.09x = 401,965,705,126,718,784
  5. Step 5: Solve for x
    x = 401,965,705,126,718,784/721,352,674.09
  6. Step 6: Final answer
    x = 557,238,809.20

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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.