Home / 121,746,661.92-168,010,378.96-66,742,907.04

Finding the Fourth Proportional to 121,746,661.92, 168,010,378.96 and 66,742,907.04

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Solution

The fourth proportional to 121,746,661.92, 168,010,378.96 and 66,742,907.04 is: 92,105,203.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,746,661.92 : 168,010,378.96 = 66,742,907.04 : x
  2. Step 2: Convert to fraction form
    121,746,661.92/168,010,378.96 = 66,742,907.04/x
  3. Step 3: Cross multiply
    121,746,661.92x = 168,010,378.96 × 66,742,907.04
  4. Step 4: Simplify right side
    121,746,661.92x = 11,213,501,104,682,452
  5. Step 5: Solve for x
    x = 11,213,501,104,682,452/121,746,661.92
  6. Step 6: Final answer
    x = 92,105,203.77

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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.