Home / 785,021,697.92-1,083,315,913.25-427,792,578.08

Finding the Fourth Proportional to 785,021,697.92, 1,083,315,913.25 and 427,792,578.08

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Solution

The fourth proportional to 785,021,697.92, 1,083,315,913.25 and 427,792,578.08 is: 590,346,112.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,021,697.92 : 1,083,315,913.25 = 427,792,578.08 : x
  2. Step 2: Convert to fraction form
    785,021,697.92/1,083,315,913.25 = 427,792,578.08/x
  3. Step 3: Cross multiply
    785,021,697.92x = 1,083,315,913.25 × 427,792,578.08
  4. Step 4: Simplify right side
    785,021,697.92x = 463,434,507,396,751,552
  5. Step 5: Solve for x
    x = 463,434,507,396,751,552/785,021,697.92
  6. Step 6: Final answer
    x = 590,346,112.25

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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.