Home / 40,333,374.09-55,660,719.78-21,998,659.59

Finding the Fourth Proportional to 40,333,374.09, 55,660,719.78 and 21,998,659.59

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Solution

The fourth proportional to 40,333,374.09, 55,660,719.78 and 21,998,659.59 is: 30,358,512.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,333,374.09 : 55,660,719.78 = 21,998,659.59 : x
  2. Step 2: Convert to fraction form
    40,333,374.09/55,660,719.78 = 21,998,659.59/x
  3. Step 3: Cross multiply
    40,333,374.09x = 55,660,719.78 × 21,998,659.59
  4. Step 4: Simplify right side
    40,333,374.09x = 1,224,461,226,974,599.75
  5. Step 5: Solve for x
    x = 1,224,461,226,974,599.75/40,333,374.09
  6. Step 6: Final answer
    x = 30,358,512.14

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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.