Home / 78,025,783.80-117,003,246.30-29,487,505.80

Finding the Fourth Proportional to 78,025,783.80, 117,003,246.30 and 29,487,505.80

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Solution

The fourth proportional to 78,025,783.80, 117,003,246.30 and 29,487,505.80 is: 44,217,869.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,025,783.80 : 117,003,246.30 = 29,487,505.80 : x
  2. Step 2: Convert to fraction form
    78,025,783.80/117,003,246.30 = 29,487,505.80/x
  3. Step 3: Cross multiply
    78,025,783.80x = 117,003,246.30 × 29,487,505.80
  4. Step 4: Simplify right side
    78,025,783.80x = 3,450,133,903,890,078.50
  5. Step 5: Solve for x
    x = 3,450,133,903,890,078.50/78,025,783.80
  6. Step 6: Final answer
    x = 44,217,869.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.