Home / 138,803,661.48-191,560,110.66-76,929,925.80

Finding the Fourth Proportional to 138,803,661.48, 191,560,110.66 and 76,929,925.80

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Solution

The fourth proportional to 138,803,661.48, 191,560,110.66 and 76,929,925.80 is: 106,169,426.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,803,661.48 : 191,560,110.66 = 76,929,925.80 : x
  2. Step 2: Convert to fraction form
    138,803,661.48/191,560,110.66 = 76,929,925.80/x
  3. Step 3: Cross multiply
    138,803,661.48x = 191,560,110.66 × 76,929,925.80
  4. Step 4: Simplify right side
    138,803,661.48x = 14,736,705,099,313,588
  5. Step 5: Solve for x
    x = 14,736,705,099,313,588/138,803,661.48
  6. Step 6: Final answer
    x = 106,169,426.24

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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.