Home / 127,115,998.80-190,698,881.40-54,332,638.80

Finding the Fourth Proportional to 127,115,998.80, 190,698,881.40 and 54,332,638.80

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Solution

The fourth proportional to 127,115,998.80, 190,698,881.40 and 54,332,638.80 is: 81,509,593.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,115,998.80 : 190,698,881.40 = 54,332,638.80 : x
  2. Step 2: Convert to fraction form
    127,115,998.80/190,698,881.40 = 54,332,638.80/x
  3. Step 3: Cross multiply
    127,115,998.80x = 190,698,881.40 × 54,332,638.80
  4. Step 4: Simplify right side
    127,115,998.80x = 10,361,173,442,670,238
  5. Step 5: Solve for x
    x = 10,361,173,442,670,238/127,115,998.80
  6. Step 6: Final answer
    x = 81,509,593.92

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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.