Home / 690,214,285,107.30-1,034,668,392,960.10-407,450,259,660.90

Finding the Fourth Proportional to 690,214,285,107.30, 1,034,668,392,960.10 and 407,450,259,660.90

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Solution

The fourth proportional to 690,214,285,107.30, 1,034,668,392,960.10 and 407,450,259,660.90 is: 610,789,887,243.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,214,285,107.30 : 1,034,668,392,960.10 = 407,450,259,660.90 : x
  2. Step 2: Convert to fraction form
    690,214,285,107.30/1,034,668,392,960.10 = 407,450,259,660.90/x
  3. Step 3: Cross multiply
    690,214,285,107.30x = 1,034,668,392,960.10 × 407,450,259,660.90
  4. Step 4: Simplify right side
    690,214,285,107.30x = 421,575,905,374,518,858,743,808
  5. Step 5: Solve for x
    x = 421,575,905,374,518,858,743,808/690,214,285,107.30
  6. Step 6: Final answer
    x = 610,789,887,243.47

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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.