Home / 138,724,623.98-191,439,914.50-82,970,043.42

Finding the Fourth Proportional to 138,724,623.98, 191,439,914.50 and 82,970,043.42

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Solution

The fourth proportional to 138,724,623.98, 191,439,914.50 and 82,970,043.42 is: 114,498,620.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,724,623.98 : 191,439,914.50 = 82,970,043.42 : x
  2. Step 2: Convert to fraction form
    138,724,623.98/191,439,914.50 = 82,970,043.42/x
  3. Step 3: Cross multiply
    138,724,623.98x = 191,439,914.50 × 82,970,043.42
  4. Step 4: Simplify right side
    138,724,623.98x = 15,883,778,018,386,088
  5. Step 5: Solve for x
    x = 15,883,778,018,386,088/138,724,623.98
  6. Step 6: Final answer
    x = 114,498,620.09

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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.