Home / 121,863,539.16-168,171,684.05-69,653,695.83

Finding the Fourth Proportional to 121,863,539.16, 168,171,684.05 and 69,653,695.83

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Solution

The fourth proportional to 121,863,539.16, 168,171,684.05 and 69,653,695.83 is: 96,122,100.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,863,539.16 : 168,171,684.05 = 69,653,695.83 : x
  2. Step 2: Convert to fraction form
    121,863,539.16/168,171,684.05 = 69,653,695.83/x
  3. Step 3: Cross multiply
    121,863,539.16x = 168,171,684.05 × 69,653,695.83
  4. Step 4: Simplify right side
    121,863,539.16x = 11,713,779,326,848,436
  5. Step 5: Solve for x
    x = 11,713,779,326,848,436/121,863,539.16
  6. Step 6: Final answer
    x = 96,122,100.24

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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.