Home / 3,925,971,736.40-5,417,858,569.20-2,141,819,782.68

Finding the Fourth Proportional to 3,925,971,736.40, 5,417,858,569.20 and 2,141,819,782.68

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Solution

The fourth proportional to 3,925,971,736.40, 5,417,858,569.20 and 2,141,819,782.68 is: 2,955,720,887.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925,971,736.40 : 5,417,858,569.20 = 2,141,819,782.68 : x
  2. Step 2: Convert to fraction form
    3,925,971,736.40/5,417,858,569.20 = 2,141,819,782.68/x
  3. Step 3: Cross multiply
    3,925,971,736.40x = 5,417,858,569.20 × 2,141,819,782.68
  4. Step 4: Simplify right side
    3,925,971,736.40x = 11,604,076,663,274,919,936
  5. Step 5: Solve for x
    x = 11,604,076,663,274,919,936/3,925,971,736.40
  6. Step 6: Final answer
    x = 2,955,720,887.06

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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.