Home / 169,655,999.20-254,558,648.40-78,732,786.40

Finding the Fourth Proportional to 169,655,999.20, 254,558,648.40 and 78,732,786.40

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Solution

The fourth proportional to 169,655,999.20, 254,558,648.40 and 78,732,786.40 is: 118,133,822.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,655,999.20 : 254,558,648.40 = 78,732,786.40 : x
  2. Step 2: Convert to fraction form
    169,655,999.20/254,558,648.40 = 78,732,786.40/x
  3. Step 3: Cross multiply
    169,655,999.20x = 254,558,648.40 × 78,732,786.40
  4. Step 4: Simplify right side
    169,655,999.20x = 20,042,111,690,749,904
  5. Step 5: Solve for x
    x = 20,042,111,690,749,904/169,655,999.20
  6. Step 6: Final answer
    x = 118,133,822.47

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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.