Home / 1,384,058,997.48-1,909,795,951.04-840,617,144.88

Finding the Fourth Proportional to 1,384,058,997.48, 1,909,795,951.04 and 840,617,144.88

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Solution

The fourth proportional to 1,384,058,997.48, 1,909,795,951.04 and 840,617,144.88 is: 1,159,926,869.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,058,997.48 : 1,909,795,951.04 = 840,617,144.88 : x
  2. Step 2: Convert to fraction form
    1,384,058,997.48/1,909,795,951.04 = 840,617,144.88/x
  3. Step 3: Cross multiply
    1,384,058,997.48x = 1,909,795,951.04 × 840,617,144.88
  4. Step 4: Simplify right side
    1,384,058,997.48x = 1,605,407,219,666,629,120
  5. Step 5: Solve for x
    x = 1,605,407,219,666,629,120/1,384,058,997.48
  6. Step 6: Final answer
    x = 1,159,926,869.15

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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.