Home / 1,091,512,987.20-1,637,269,480.80-401,277,416.40

Finding the Fourth Proportional to 1,091,512,987.20, 1,637,269,480.80 and 401,277,416.40

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Solution

The fourth proportional to 1,091,512,987.20, 1,637,269,480.80 and 401,277,416.40 is: 601,916,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,512,987.20 : 1,637,269,480.80 = 401,277,416.40 : x
  2. Step 2: Convert to fraction form
    1,091,512,987.20/1,637,269,480.80 = 401,277,416.40/x
  3. Step 3: Cross multiply
    1,091,512,987.20x = 1,637,269,480.80 × 401,277,416.40
  4. Step 4: Simplify right side
    1,091,512,987.20x = 656,999,267,205,993,344
  5. Step 5: Solve for x
    x = 656,999,267,205,993,344/1,091,512,987.20
  6. Step 6: Final answer
    x = 601,916,124.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.