Home / 127,819,578.80-191,729,368.20-121,269,076.40

Finding the Fourth Proportional to 127,819,578.80, 191,729,368.20 and 121,269,076.40

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Solution

The fourth proportional to 127,819,578.80, 191,729,368.20 and 121,269,076.40 is: 181,903,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,819,578.80 : 191,729,368.20 = 121,269,076.40 : x
  2. Step 2: Convert to fraction form
    127,819,578.80/191,729,368.20 = 121,269,076.40/x
  3. Step 3: Cross multiply
    127,819,578.80x = 191,729,368.20 × 121,269,076.40
  4. Step 4: Simplify right side
    127,819,578.80x = 23,250,843,400,369,532
  5. Step 5: Solve for x
    x = 23,250,843,400,369,532/127,819,578.80
  6. Step 6: Final answer
    x = 181,903,614.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.