Home / 84,379,594.41-116,436,801.65-78,210,154.89

Finding the Fourth Proportional to 84,379,594.41, 116,436,801.65 and 78,210,154.89

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Solution

The fourth proportional to 84,379,594.41, 116,436,801.65 and 78,210,154.89 is: 107,923,489.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,379,594.41 : 116,436,801.65 = 78,210,154.89 : x
  2. Step 2: Convert to fraction form
    84,379,594.41/116,436,801.65 = 78,210,154.89/x
  3. Step 3: Cross multiply
    84,379,594.41x = 116,436,801.65 × 78,210,154.89
  4. Step 4: Simplify right side
    84,379,594.41x = 9,106,540,291,551,656
  5. Step 5: Solve for x
    x = 9,106,540,291,551,656/84,379,594.41
  6. Step 6: Final answer
    x = 107,923,489.74

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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.