Home / 209,952,004.70-314,928,007.05-145,237,799.90

Finding the Fourth Proportional to 209,952,004.70, 314,928,007.05 and 145,237,799.90

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Solution

The fourth proportional to 209,952,004.70, 314,928,007.05 and 145,237,799.90 is: 217,856,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,004.70 : 314,928,007.05 = 145,237,799.90 : x
  2. Step 2: Convert to fraction form
    209,952,004.70/314,928,007.05 = 145,237,799.90/x
  3. Step 3: Cross multiply
    209,952,004.70x = 314,928,007.05 × 145,237,799.90
  4. Step 4: Simplify right side
    209,952,004.70x = 45,739,450,870,833,696
  5. Step 5: Solve for x
    x = 45,739,450,870,833,696/209,952,004.70
  6. Step 6: Final answer
    x = 217,856,699.85

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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.