Home / 83,711,259.81-115,528,009.62-50,221,993.68

Finding the Fourth Proportional to 83,711,259.81, 115,528,009.62 and 50,221,993.68

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Solution

The fourth proportional to 83,711,259.81, 115,528,009.62 and 50,221,993.68 is: 69,310,233.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,711,259.81 : 115,528,009.62 = 50,221,993.68 : x
  2. Step 2: Convert to fraction form
    83,711,259.81/115,528,009.62 = 50,221,993.68/x
  3. Step 3: Cross multiply
    83,711,259.81x = 115,528,009.62 × 50,221,993.68
  4. Step 4: Simplify right side
    83,711,259.81x = 5,802,046,968,998,619
  5. Step 5: Solve for x
    x = 5,802,046,968,998,619/83,711,259.81
  6. Step 6: Final answer
    x = 69,310,233.56

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Double scale
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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.