Home / 208,581,472.80-312,946,858.80-87,450,055.20

Finding the Fourth Proportional to 208,581,472.80, 312,946,858.80 and 87,450,055.20

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Solution

The fourth proportional to 208,581,472.80, 312,946,858.80 and 87,450,055.20 is: 131,206,380.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,581,472.80 : 312,946,858.80 = 87,450,055.20 : x
  2. Step 2: Convert to fraction form
    208,581,472.80/312,946,858.80 = 87,450,055.20/x
  3. Step 3: Cross multiply
    208,581,472.80x = 312,946,858.80 × 87,450,055.20
  4. Step 4: Simplify right side
    208,581,472.80x = 27,367,220,076,726,608
  5. Step 5: Solve for x
    x = 27,367,220,076,726,608/208,581,472.80
  6. Step 6: Final answer
    x = 131,206,380.46

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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.