Home / 1,285,794,959.40-1,928,884,090.02-456,678,945.42

Finding the Fourth Proportional to 1,285,794,959.40, 1,928,884,090.02 and 456,678,945.42

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Solution

The fourth proportional to 1,285,794,959.40, 1,928,884,090.02 and 456,678,945.42 is: 685,086,487.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,794,959.40 : 1,928,884,090.02 = 456,678,945.42 : x
  2. Step 2: Convert to fraction form
    1,285,794,959.40/1,928,884,090.02 = 456,678,945.42/x
  3. Step 3: Cross multiply
    1,285,794,959.40x = 1,928,884,090.02 × 456,678,945.42
  4. Step 4: Simplify right side
    1,285,794,959.40x = 880,880,752,067,750,016
  5. Step 5: Solve for x
    x = 880,880,752,067,750,016/1,285,794,959.40
  6. Step 6: Final answer
    x = 685,086,487.26

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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.