Home / 121,863,537.20-168,171,681.33-69,653,693.87

Finding the Fourth Proportional to 121,863,537.20, 168,171,681.33 and 69,653,693.87

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Solution

The fourth proportional to 121,863,537.20, 168,171,681.33 and 69,653,693.87 is: 96,122,097.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,863,537.20 : 168,171,681.33 = 69,653,693.87 : x
  2. Step 2: Convert to fraction form
    121,863,537.20/168,171,681.33 = 69,653,693.87/x
  3. Step 3: Cross multiply
    121,863,537.20x = 168,171,681.33 × 69,653,693.87
  4. Step 4: Simplify right side
    121,863,537.20x = 11,713,778,808,963,016
  5. Step 5: Solve for x
    x = 11,713,778,808,963,016/121,863,537.20
  6. Step 6: Final answer
    x = 96,122,097.54

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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.