Home / 85,850,273.86-128,828,378.57-39,783,556.34

Finding the Fourth Proportional to 85,850,273.86, 128,828,378.57 and 39,783,556.34

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Solution

The fourth proportional to 85,850,273.86, 128,828,378.57 and 39,783,556.34 is: 59,699,880.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,850,273.86 : 128,828,378.57 = 39,783,556.34 : x
  2. Step 2: Convert to fraction form
    85,850,273.86/128,828,378.57 = 39,783,556.34/x
  3. Step 3: Cross multiply
    85,850,273.86x = 128,828,378.57 × 39,783,556.34
  4. Step 4: Simplify right side
    85,850,273.86x = 5,125,251,056,386,302
  5. Step 5: Solve for x
    x = 5,125,251,056,386,302/85,850,273.86
  6. Step 6: Final answer
    x = 59,699,880.11

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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.