Home / 465,331,806.80-697,997,710.20-393,668,190.80

Finding the Fourth Proportional to 465,331,806.80, 697,997,710.20 and 393,668,190.80

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Solution

The fourth proportional to 465,331,806.80, 697,997,710.20 and 393,668,190.80 is: 590,502,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,331,806.80 : 697,997,710.20 = 393,668,190.80 : x
  2. Step 2: Convert to fraction form
    465,331,806.80/697,997,710.20 = 393,668,190.80/x
  3. Step 3: Cross multiply
    465,331,806.80x = 697,997,710.20 × 393,668,190.80
  4. Step 4: Simplify right side
    465,331,806.80x = 274,779,495,756,976,736
  5. Step 5: Solve for x
    x = 274,779,495,756,976,736/465,331,806.80
  6. Step 6: Final answer
    x = 590,502,286.20

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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.