Home / 1,345,203,287.20-2,017,804,930.80-618,191,999.20

Finding the Fourth Proportional to 1,345,203,287.20, 2,017,804,930.80 and 618,191,999.20

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Solution

The fourth proportional to 1,345,203,287.20, 2,017,804,930.80 and 618,191,999.20 is: 927,287,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,203,287.20 : 2,017,804,930.80 = 618,191,999.20 : x
  2. Step 2: Convert to fraction form
    1,345,203,287.20/2,017,804,930.80 = 618,191,999.20/x
  3. Step 3: Cross multiply
    1,345,203,287.20x = 2,017,804,930.80 × 618,191,999.20
  4. Step 4: Simplify right side
    1,345,203,287.20x = 1,247,390,864,166,869,760
  5. Step 5: Solve for x
    x = 1,247,390,864,166,869,760/1,345,203,287.20
  6. Step 6: Final answer
    x = 927,287,998.80

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Similar ratio
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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.