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Finding the Fourth Proportional to 100,602,473.20, 150,903,709.80 and 28,798,889.20

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Solution

The fourth proportional to 100,602,473.20, 150,903,709.80 and 28,798,889.20 is: 43,198,333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,602,473.20 : 150,903,709.80 = 28,798,889.20 : x
  2. Step 2: Convert to fraction form
    100,602,473.20/150,903,709.80 = 28,798,889.20/x
  3. Step 3: Cross multiply
    100,602,473.20x = 150,903,709.80 × 28,798,889.20
  4. Step 4: Simplify right side
    100,602,473.20x = 4,345,859,218,399,154.50
  5. Step 5: Solve for x
    x = 4,345,859,218,399,154.50/100,602,473.20
  6. Step 6: Final answer
    x = 43,198,333.80

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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.