Home / 785,021,694.15-1,083,315,908.07-427,792,574.31

Finding the Fourth Proportional to 785,021,694.15, 1,083,315,908.07 and 427,792,574.31

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Solution

The fourth proportional to 785,021,694.15, 1,083,315,908.07 and 427,792,574.31 is: 590,346,107.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,021,694.15 : 1,083,315,908.07 = 427,792,574.31 : x
  2. Step 2: Convert to fraction form
    785,021,694.15/1,083,315,908.07 = 427,792,574.31/x
  3. Step 3: Cross multiply
    785,021,694.15x = 1,083,315,908.07 × 427,792,574.31
  4. Step 4: Simplify right side
    785,021,694.15x = 463,434,501,100,178,112
  5. Step 5: Solve for x
    x = 463,434,501,100,178,112/785,021,694.15
  6. Step 6: Final answer
    x = 590,346,107.06

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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.