Home / 30,121,996.80-45,151,502.40-16,454,121.60

Finding the Fourth Proportional to 30,121,996.80, 45,151,502.40 and 16,454,121.60

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Solution

The fourth proportional to 30,121,996.80, 45,151,502.40 and 16,454,121.60 is: 24,663,979.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121,996.80 : 45,151,502.40 = 16,454,121.60 : x
  2. Step 2: Convert to fraction form
    30,121,996.80/45,151,502.40 = 16,454,121.60/x
  3. Step 3: Cross multiply
    30,121,996.80x = 45,151,502.40 × 16,454,121.60
  4. Step 4: Simplify right side
    30,121,996.80x = 742,928,310,912,291.75
  5. Step 5: Solve for x
    x = 742,928,310,912,291.75/30,121,996.80
  6. Step 6: Final answer
    x = 24,663,979.48

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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.