Home / 209,090,762.48-288,545,400.21-115,012,067.15

Finding the Fourth Proportional to 209,090,762.48, 288,545,400.21 and 115,012,067.15

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Solution

The fourth proportional to 209,090,762.48, 288,545,400.21 and 115,012,067.15 is: 158,716,734.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,090,762.48 : 288,545,400.21 = 115,012,067.15 : x
  2. Step 2: Convert to fraction form
    209,090,762.48/288,545,400.21 = 115,012,067.15/x
  3. Step 3: Cross multiply
    209,090,762.48x = 288,545,400.21 × 115,012,067.15
  4. Step 4: Simplify right side
    209,090,762.48x = 33,186,202,945,928,804
  5. Step 5: Solve for x
    x = 33,186,202,945,928,804/209,090,762.48
  6. Step 6: Final answer
    x = 158,716,734.07

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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.