Home / 13,198,449,319.66-18,214,205,259.77-7,177,306,877.08

Finding the Fourth Proportional to 13,198,449,319.66, 18,214,205,259.77 and 7,177,306,877.08

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Solution

The fourth proportional to 13,198,449,319.66, 18,214,205,259.77 and 7,177,306,877.08 is: 9,904,871,209.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198,449,319.66 : 18,214,205,259.77 = 7,177,306,877.08 : x
  2. Step 2: Convert to fraction form
    13,198,449,319.66/18,214,205,259.77 = 7,177,306,877.08/x
  3. Step 3: Cross multiply
    13,198,449,319.66x = 18,214,205,259.77 × 7,177,306,877.08
  4. Step 4: Simplify right side
    13,198,449,319.66x = 130,728,940,671,448,399,872
  5. Step 5: Solve for x
    x = 130,728,940,671,448,399,872/13,198,449,319.66
  6. Step 6: Final answer
    x = 9,904,871,209.13

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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.