Home / 208,639,205.80-312,660,210.30-153,622,450.60

Finding the Fourth Proportional to 208,639,205.80, 312,660,210.30 and 153,622,450.60

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Solution

The fourth proportional to 208,639,205.80, 312,660,210.30 and 153,622,450.60 is: 230,213,815.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,639,205.80 : 312,660,210.30 = 153,622,450.60 : x
  2. Step 2: Convert to fraction form
    208,639,205.80/312,660,210.30 = 153,622,450.60/x
  3. Step 3: Cross multiply
    208,639,205.80x = 312,660,210.30 × 153,622,450.60
  4. Step 4: Simplify right side
    208,639,205.80x = 48,031,627,711,397,360
  5. Step 5: Solve for x
    x = 48,031,627,711,397,360/208,639,205.80
  6. Step 6: Final answer
    x = 230,213,815.89

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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.