Home / 1,247,460,654,445.70-1,721,505,810,901.80-691,275,071,781.88

Finding the Fourth Proportional to 1,247,460,654,445.70, 1,721,505,810,901.80 and 691,275,071,781.88

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Solution

The fourth proportional to 1,247,460,654,445.70, 1,721,505,810,901.80 and 691,275,071,781.88 is: 953,965,200,235.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,460,654,445.70 : 1,721,505,810,901.80 = 691,275,071,781.88 : x
  2. Step 2: Convert to fraction form
    1,247,460,654,445.70/1,721,505,810,901.80 = 691,275,071,781.88/x
  3. Step 3: Cross multiply
    1,247,460,654,445.70x = 1,721,505,810,901.80 × 691,275,071,781.88
  4. Step 4: Simplify right side
    1,247,460,654,445.70x = 1,190,034,053,004,065,385,742,336
  5. Step 5: Solve for x
    x = 1,190,034,053,004,065,385,742,336/1,247,460,654,445.70
  6. Step 6: Final answer
    x = 953,965,200,235.39

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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.