Home / 208,382,693.70-312,494,587.37-70,171,192.66

Finding the Fourth Proportional to 208,382,693.70, 312,494,587.37 and 70,171,192.66

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Solution

The fourth proportional to 208,382,693.70, 312,494,587.37 and 70,171,192.66 is: 105,230,033.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,382,693.70 : 312,494,587.37 = 70,171,192.66 : x
  2. Step 2: Convert to fraction form
    208,382,693.70/312,494,587.37 = 70,171,192.66/x
  3. Step 3: Cross multiply
    208,382,693.70x = 312,494,587.37 × 70,171,192.66
  4. Step 4: Simplify right side
    208,382,693.70x = 21,928,117,894,824,768
  5. Step 5: Solve for x
    x = 21,928,117,894,824,768/208,382,693.70
  6. Step 6: Final answer
    x = 105,230,033.77

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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.