Home / 81,129,329.65-111,958,864.77-43,959,600.10

Finding the Fourth Proportional to 81,129,329.65, 111,958,864.77 and 43,959,600.10

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Solution

The fourth proportional to 81,129,329.65, 111,958,864.77 and 43,959,600.10 is: 60,664,459.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,129,329.65 : 111,958,864.77 = 43,959,600.10 : x
  2. Step 2: Convert to fraction form
    81,129,329.65/111,958,864.77 = 43,959,600.10/x
  3. Step 3: Cross multiply
    81,129,329.65x = 111,958,864.77 × 43,959,600.10
  4. Step 4: Simplify right side
    81,129,329.65x = 4,921,666,922,939,178
  5. Step 5: Solve for x
    x = 4,921,666,922,939,178/81,129,329.65
  6. Step 6: Final answer
    x = 60,664,459.38

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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.