Home / 45,106,123.12-67,648,345.36-20,821,724.33

Finding the Fourth Proportional to 45,106,123.12, 67,648,345.36 and 20,821,724.33

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Solution

The fourth proportional to 45,106,123.12, 67,648,345.36 and 20,821,724.33 is: 31,227,582.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,106,123.12 : 67,648,345.36 = 20,821,724.33 : x
  2. Step 2: Convert to fraction form
    45,106,123.12/67,648,345.36 = 20,821,724.33/x
  3. Step 3: Cross multiply
    45,106,123.12x = 67,648,345.36 × 20,821,724.33
  4. Step 4: Simplify right side
    45,106,123.12x = 1,408,555,198,076,258.50
  5. Step 5: Solve for x
    x = 1,408,555,198,076,258.50/45,106,123.12
  6. Step 6: Final answer
    x = 31,227,582.88

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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.