Home / 144,642,365.82-199,607,929.70-78,564,154.37

Finding the Fourth Proportional to 144,642,365.82, 199,607,929.70 and 78,564,154.37

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Solution

The fourth proportional to 144,642,365.82, 199,607,929.70 and 78,564,154.37 is: 108,419,328.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,642,365.82 : 199,607,929.70 = 78,564,154.37 : x
  2. Step 2: Convert to fraction form
    144,642,365.82/199,607,929.70 = 78,564,154.37/x
  3. Step 3: Cross multiply
    144,642,365.82x = 199,607,929.70 × 78,564,154.37
  4. Step 4: Simplify right side
    144,642,365.82x = 15,682,028,201,036,046
  5. Step 5: Solve for x
    x = 15,682,028,201,036,046/144,642,365.82
  6. Step 6: Final answer
    x = 108,419,328.68

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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.