Home / 690,214,285,108.80-1,034,668,392,962.40-407,450,259,662.40

Finding the Fourth Proportional to 690,214,285,108.80, 1,034,668,392,962.40 and 407,450,259,662.40

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Solution

The fourth proportional to 690,214,285,108.80, 1,034,668,392,962.40 and 407,450,259,662.40 is: 610,789,887,245.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,214,285,108.80 : 1,034,668,392,962.40 = 407,450,259,662.40 : x
  2. Step 2: Convert to fraction form
    690,214,285,108.80/1,034,668,392,962.40 = 407,450,259,662.40/x
  3. Step 3: Cross multiply
    690,214,285,108.80x = 1,034,668,392,962.40 × 407,450,259,662.40
  4. Step 4: Simplify right side
    690,214,285,108.80x = 421,575,905,377,008,060,727,296
  5. Step 5: Solve for x
    x = 421,575,905,377,008,060,727,296/690,214,285,108.80
  6. Step 6: Final answer
    x = 610,789,887,245.75

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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.