Home / 121,863,539.52-168,171,684.54-69,653,696.19

Finding the Fourth Proportional to 121,863,539.52, 168,171,684.54 and 69,653,696.19

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Solution

The fourth proportional to 121,863,539.52, 168,171,684.54 and 69,653,696.19 is: 96,122,100.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,863,539.52 : 168,171,684.54 = 69,653,696.19 : x
  2. Step 2: Convert to fraction form
    121,863,539.52/168,171,684.54 = 69,653,696.19/x
  3. Step 3: Cross multiply
    121,863,539.52x = 168,171,684.54 × 69,653,696.19
  4. Step 4: Simplify right side
    121,863,539.52x = 11,713,779,422,709,678
  5. Step 5: Solve for x
    x = 11,713,779,422,709,678/121,863,539.52
  6. Step 6: Final answer
    x = 96,122,100.74

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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.