Home / 208,652,743.80-312,979,115.70-131,054,484.60

Finding the Fourth Proportional to 208,652,743.80, 312,979,115.70 and 131,054,484.60

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Solution

The fourth proportional to 208,652,743.80, 312,979,115.70 and 131,054,484.60 is: 196,581,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,652,743.80 : 312,979,115.70 = 131,054,484.60 : x
  2. Step 2: Convert to fraction form
    208,652,743.80/312,979,115.70 = 131,054,484.60/x
  3. Step 3: Cross multiply
    208,652,743.80x = 312,979,115.70 × 131,054,484.60
  4. Step 4: Simplify right side
    208,652,743.80x = 41,017,316,698,627,264
  5. Step 5: Solve for x
    x = 41,017,316,698,627,264/208,652,743.80
  6. Step 6: Final answer
    x = 196,581,726.90

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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.