Home / 2,659,397,132.40-3,989,095,698.60-818,910,661.20

Finding the Fourth Proportional to 2,659,397,132.40, 3,989,095,698.60 and 818,910,661.20

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Solution

The fourth proportional to 2,659,397,132.40, 3,989,095,698.60 and 818,910,661.20 is: 1,228,365,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659,397,132.40 : 3,989,095,698.60 = 818,910,661.20 : x
  2. Step 2: Convert to fraction form
    2,659,397,132.40/3,989,095,698.60 = 818,910,661.20/x
  3. Step 3: Cross multiply
    2,659,397,132.40x = 3,989,095,698.60 × 818,910,661.20
  4. Step 4: Simplify right side
    2,659,397,132.40x = 3,266,712,996,130,601,984
  5. Step 5: Solve for x
    x = 3,266,712,996,130,601,984/2,659,397,132.40
  6. Step 6: Final answer
    x = 1,228,365,991.80

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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.