Home / 1,055,268,004.20-1,582,902,006.30-779,768,989.80

Finding the Fourth Proportional to 1,055,268,004.20, 1,582,902,006.30 and 779,768,989.80

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Solution

The fourth proportional to 1,055,268,004.20, 1,582,902,006.30 and 779,768,989.80 is: 1,169,653,484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,268,004.20 : 1,582,902,006.30 = 779,768,989.80 : x
  2. Step 2: Convert to fraction form
    1,055,268,004.20/1,582,902,006.30 = 779,768,989.80/x
  3. Step 3: Cross multiply
    1,055,268,004.20x = 1,582,902,006.30 × 779,768,989.80
  4. Step 4: Simplify right side
    1,055,268,004.20x = 1,234,297,898,404,944,128
  5. Step 5: Solve for x
    x = 1,234,297,898,404,944,128/1,055,268,004.20
  6. Step 6: Final answer
    x = 1,169,653,484.70

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Double scale
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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.