Home / 497,341,303.90-686,318,976.14-274,318,195.88

Finding the Fourth Proportional to 497,341,303.90, 686,318,976.14 and 274,318,195.88

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Solution

The fourth proportional to 497,341,303.90, 686,318,976.14 and 274,318,195.88 is: 378,552,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,341,303.90 : 686,318,976.14 = 274,318,195.88 : x
  2. Step 2: Convert to fraction form
    497,341,303.90/686,318,976.14 = 274,318,195.88/x
  3. Step 3: Cross multiply
    497,341,303.90x = 686,318,976.14 × 274,318,195.88
  4. Step 4: Simplify right side
    497,341,303.90x = 188,269,783,333,277,760
  5. Step 5: Solve for x
    x = 188,269,783,333,277,760/497,341,303.90
  6. Step 6: Final answer
    x = 378,552,478.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.