Home / 279,744,006.40-419,616,009.60-261,828,102.40

Finding the Fourth Proportional to 279,744,006.40, 419,616,009.60 and 261,828,102.40

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Solution

The fourth proportional to 279,744,006.40, 419,616,009.60 and 261,828,102.40 is: 392,742,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,744,006.40 : 419,616,009.60 = 261,828,102.40 : x
  2. Step 2: Convert to fraction form
    279,744,006.40/419,616,009.60 = 261,828,102.40/x
  3. Step 3: Cross multiply
    279,744,006.40x = 419,616,009.60 × 261,828,102.40
  4. Step 4: Simplify right side
    279,744,006.40x = 109,867,263,530,228,192
  5. Step 5: Solve for x
    x = 109,867,263,530,228,192/279,744,006.40
  6. Step 6: Final answer
    x = 392,742,153.60

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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.