Home / 20,736,853.70-31,105,280.56-19,477,141.70

Finding the Fourth Proportional to 20,736,853.70, 31,105,280.56 and 19,477,141.70

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Solution

The fourth proportional to 20,736,853.70, 31,105,280.56 and 19,477,141.70 is: 29,215,712.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,853.70 : 31,105,280.56 = 19,477,141.70 : x
  2. Step 2: Convert to fraction form
    20,736,853.70/31,105,280.56 = 19,477,141.70/x
  3. Step 3: Cross multiply
    20,736,853.70x = 31,105,280.56 × 19,477,141.70
  4. Step 4: Simplify right side
    20,736,853.70x = 605,841,957,085,375.25
  5. Step 5: Solve for x
    x = 605,841,957,085,375.25/20,736,853.70
  6. Step 6: Final answer
    x = 29,215,712.56

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1.5x scale

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.