Home / 869,244,981.75-1,199,870,095.23-516,820,131.69

Finding the Fourth Proportional to 869,244,981.75, 1,199,870,095.23 and 516,820,131.69

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Solution

The fourth proportional to 869,244,981.75, 1,199,870,095.23 and 516,820,131.69 is: 713,397,297.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,244,981.75 : 1,199,870,095.23 = 516,820,131.69 : x
  2. Step 2: Convert to fraction form
    869,244,981.75/1,199,870,095.23 = 516,820,131.69/x
  3. Step 3: Cross multiply
    869,244,981.75x = 1,199,870,095.23 × 516,820,131.69
  4. Step 4: Simplify right side
    869,244,981.75x = 620,117,020,627,661,440
  5. Step 5: Solve for x
    x = 620,117,020,627,661,440/869,244,981.75
  6. Step 6: Final answer
    x = 713,397,297.25

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Double scale
Find fourth proportional to 869,244,982.75, 1,199,870,096.61 and 516,820,132.69
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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.