Home / 138,852,052.80-191,635,365.69-85,945,742.07

Finding the Fourth Proportional to 138,852,052.80, 191,635,365.69 and 85,945,742.07

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Solution

The fourth proportional to 138,852,052.80, 191,635,365.69 and 85,945,742.07 is: 118,617,214.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,852,052.80 : 191,635,365.69 = 85,945,742.07 : x
  2. Step 2: Convert to fraction form
    138,852,052.80/191,635,365.69 = 85,945,742.07/x
  3. Step 3: Cross multiply
    138,852,052.80x = 191,635,365.69 × 85,945,742.07
  4. Step 4: Simplify right side
    138,852,052.80x = 16,470,243,711,082,866
  5. Step 5: Solve for x
    x = 16,470,243,711,082,866/138,852,052.80
  6. Step 6: Final answer
    x = 118,617,214.36

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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.