Home / 1,769,393,999.40-2,654,090,999.10-1,218,395,970.60

Finding the Fourth Proportional to 1,769,393,999.40, 2,654,090,999.10 and 1,218,395,970.60

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Solution

The fourth proportional to 1,769,393,999.40, 2,654,090,999.10 and 1,218,395,970.60 is: 1,827,593,955.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769,393,999.40 : 2,654,090,999.10 = 1,218,395,970.60 : x
  2. Step 2: Convert to fraction form
    1,769,393,999.40/2,654,090,999.10 = 1,218,395,970.60/x
  3. Step 3: Cross multiply
    1,769,393,999.40x = 2,654,090,999.10 × 1,218,395,970.60
  4. Step 4: Simplify right side
    1,769,393,999.40x = 3,233,733,778,909,167,616
  5. Step 5: Solve for x
    x = 3,233,733,778,909,167,616/1,769,393,999.40
  6. Step 6: Final answer
    x = 1,827,593,955.90

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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.