Home / 721,370,391,855.93-995,510,580,991.92-424,418,906,430.63

Finding the Fourth Proportional to 721,370,391,855.93, 995,510,580,991.92 and 424,418,906,430.63

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Solution

The fourth proportional to 721,370,391,855.93, 995,510,580,991.92 and 424,418,906,430.63 is: 585,709,528,551.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,370,391,855.93 : 995,510,580,991.92 = 424,418,906,430.63 : x
  2. Step 2: Convert to fraction form
    721,370,391,855.93/995,510,580,991.92 = 424,418,906,430.63/x
  3. Step 3: Cross multiply
    721,370,391,855.93x = 995,510,580,991.92 × 424,418,906,430.63
  4. Step 4: Simplify right side
    721,370,391,855.93x = 422,513,512,124,711,822,163,968
  5. Step 5: Solve for x
    x = 422,513,512,124,711,822,163,968/721,370,391,855.93
  6. Step 6: Final answer
    x = 585,709,528,551.17

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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.