Home / 869,244,982.63-1,199,870,096.44-516,820,132.57

Finding the Fourth Proportional to 869,244,982.63, 1,199,870,096.44 and 516,820,132.57

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Solution

The fourth proportional to 869,244,982.63, 1,199,870,096.44 and 516,820,132.57 is: 713,397,298.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,244,982.63 : 1,199,870,096.44 = 516,820,132.57 : x
  2. Step 2: Convert to fraction form
    869,244,982.63/1,199,870,096.44 = 516,820,132.57/x
  3. Step 3: Cross multiply
    869,244,982.63x = 1,199,870,096.44 × 516,820,132.57
  4. Step 4: Simplify right side
    869,244,982.63x = 620,117,022,308,899,456
  5. Step 5: Solve for x
    x = 620,117,022,308,899,456/869,244,982.63
  6. Step 6: Final answer
    x = 713,397,298.46

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Double scale
Find fourth proportional to 869,244,983.63, 1,199,870,097.82 and 516,820,133.57
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1.5x scale

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.