Home / 20,785,247,999.20-31,177,871,998.80-5,275,673,855.20

Finding the Fourth Proportional to 20,785,247,999.20, 31,177,871,998.80 and 5,275,673,855.20

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Solution

The fourth proportional to 20,785,247,999.20, 31,177,871,998.80 and 5,275,673,855.20 is: 7,913,510,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,247,999.20 : 31,177,871,998.80 = 5,275,673,855.20 : x
  2. Step 2: Convert to fraction form
    20,785,247,999.20/31,177,871,998.80 = 5,275,673,855.20/x
  3. Step 3: Cross multiply
    20,785,247,999.20x = 31,177,871,998.80 × 5,275,673,855.20
  4. Step 4: Simplify right side
    20,785,247,999.20x = 164,484,284,164,841,308,160
  5. Step 5: Solve for x
    x = 164,484,284,164,841,308,160/20,785,247,999.20
  6. Step 6: Final answer
    x = 7,913,510,782.80

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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.