Home / 1,489,107,962.80-2,233,661,944.20-989,765,999.20

Finding the Fourth Proportional to 1,489,107,962.80, 2,233,661,944.20 and 989,765,999.20

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Solution

The fourth proportional to 1,489,107,962.80, 2,233,661,944.20 and 989,765,999.20 is: 1,484,648,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,107,962.80 : 2,233,661,944.20 = 989,765,999.20 : x
  2. Step 2: Convert to fraction form
    1,489,107,962.80/2,233,661,944.20 = 989,765,999.20/x
  3. Step 3: Cross multiply
    1,489,107,962.80x = 2,233,661,944.20 × 989,765,999.20
  4. Step 4: Simplify right side
    1,489,107,962.80x = 2,210,802,646,076,127,488
  5. Step 5: Solve for x
    x = 2,210,802,646,076,127,488/1,489,107,962.80
  6. Step 6: Final answer
    x = 1,484,648,998.80

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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.