Home / 138,718,108.80-191,430,973.74-82,963,520.60

Finding the Fourth Proportional to 138,718,108.80, 191,430,973.74 and 82,963,520.60

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Solution

The fourth proportional to 138,718,108.80, 191,430,973.74 and 82,963,520.60 is: 114,489,648.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,718,108.80 : 191,430,973.74 = 82,963,520.60 : x
  2. Step 2: Convert to fraction form
    138,718,108.80/191,430,973.74 = 82,963,520.60/x
  3. Step 3: Cross multiply
    138,718,108.80x = 191,430,973.74 × 82,963,520.60
  4. Step 4: Simplify right side
    138,718,108.80x = 15,881,787,532,399,394
  5. Step 5: Solve for x
    x = 15,881,787,532,399,394/138,718,108.80
  6. Step 6: Final answer
    x = 114,489,648.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.