Home / 119,661,536.80-165,104,802.52-72,617,544.76

Finding the Fourth Proportional to 119,661,536.80, 165,104,802.52 and 72,617,544.76

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Solution

The fourth proportional to 119,661,536.80, 165,104,802.52 and 72,617,544.76 is: 100,195,147.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,661,536.80 : 165,104,802.52 = 72,617,544.76 : x
  2. Step 2: Convert to fraction form
    119,661,536.80/165,104,802.52 = 72,617,544.76/x
  3. Step 3: Cross multiply
    119,661,536.80x = 165,104,802.52 × 72,617,544.76
  4. Step 4: Simplify right side
    119,661,536.80x = 11,989,505,387,087,062
  5. Step 5: Solve for x
    x = 11,989,505,387,087,062/119,661,536.80
  6. Step 6: Final answer
    x = 100,195,147.98

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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.