Home / 127,152,053.70-190,728,080.55-31,413,941.70

Finding the Fourth Proportional to 127,152,053.70, 190,728,080.55 and 31,413,941.70

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Solution

The fourth proportional to 127,152,053.70, 190,728,080.55 and 31,413,941.70 is: 47,120,912.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,152,053.70 : 190,728,080.55 = 31,413,941.70 : x
  2. Step 2: Convert to fraction form
    127,152,053.70/190,728,080.55 = 31,413,941.70/x
  3. Step 3: Cross multiply
    127,152,053.70x = 190,728,080.55 × 31,413,941.70
  4. Step 4: Simplify right side
    127,152,053.70x = 5,991,520,802,950,604
  5. Step 5: Solve for x
    x = 5,991,520,802,950,604/127,152,053.70
  6. Step 6: Final answer
    x = 47,120,912.55

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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.