Home / 71,829,379.50-99,124,554.78-39,234,331.50

Finding the Fourth Proportional to 71,829,379.50, 99,124,554.78 and 39,234,331.50

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Solution

The fourth proportional to 71,829,379.50, 99,124,554.78 and 39,234,331.50 is: 54,143,383.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,829,379.50 : 99,124,554.78 = 39,234,331.50 : x
  2. Step 2: Convert to fraction form
    71,829,379.50/99,124,554.78 = 39,234,331.50/x
  3. Step 3: Cross multiply
    71,829,379.50x = 99,124,554.78 × 39,234,331.50
  4. Step 4: Simplify right side
    71,829,379.50x = 3,889,085,642,028,429.50
  5. Step 5: Solve for x
    x = 3,889,085,642,028,429.50/71,829,379.50
  6. Step 6: Final answer
    x = 54,143,383.52

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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.