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Finding the Fourth Proportional to 300,127,998.60, 450,191,997.90 and 249,109,662.60

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Solution

The fourth proportional to 300,127,998.60, 450,191,997.90 and 249,109,662.60 is: 373,664,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,127,998.60 : 450,191,997.90 = 249,109,662.60 : x
  2. Step 2: Convert to fraction form
    300,127,998.60/450,191,997.90 = 249,109,662.60/x
  3. Step 3: Cross multiply
    300,127,998.60x = 450,191,997.90 × 249,109,662.60
  4. Step 4: Simplify right side
    300,127,998.60x = 112,147,176,702,088,896
  5. Step 5: Solve for x
    x = 112,147,176,702,088,896/300,127,998.60
  6. Step 6: Final answer
    x = 373,664,493.90

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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.