Home / 205,075,791.68-307,627,402.14-72,112,762.69

Finding the Fourth Proportional to 205,075,791.68, 307,627,402.14 and 72,112,762.69

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Solution

The fourth proportional to 205,075,791.68, 307,627,402.14 and 72,112,762.69 is: 108,173,966.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,075,791.68 : 307,627,402.14 = 72,112,762.69 : x
  2. Step 2: Convert to fraction form
    205,075,791.68/307,627,402.14 = 72,112,762.69/x
  3. Step 3: Cross multiply
    205,075,791.68x = 307,627,402.14 × 72,112,762.69
  4. Step 4: Simplify right side
    205,075,791.68x = 22,183,861,846,693,948
  5. Step 5: Solve for x
    x = 22,183,861,846,693,948/205,075,791.68
  6. Step 6: Final answer
    x = 108,173,966.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.