Home / 208,673,288.40-312,885,516.60-127,952,187.60

Finding the Fourth Proportional to 208,673,288.40, 312,885,516.60 and 127,952,187.60

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Solution

The fourth proportional to 208,673,288.40, 312,885,516.60 and 127,952,187.60 is: 191,851,993.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,673,288.40 : 312,885,516.60 = 127,952,187.60 : x
  2. Step 2: Convert to fraction form
    208,673,288.40/312,885,516.60 = 127,952,187.60/x
  3. Step 3: Cross multiply
    208,673,288.40x = 312,885,516.60 × 127,952,187.60
  4. Step 4: Simplify right side
    208,673,288.40x = 40,034,386,317,326,112
  5. Step 5: Solve for x
    x = 40,034,386,317,326,112/208,673,288.40
  6. Step 6: Final answer
    x = 191,851,993.25

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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.