Home / 808,640,810.42-1,209,769,744.46-612,469,329.75

Finding the Fourth Proportional to 808,640,810.42, 1,209,769,744.46 and 612,469,329.75

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Solution

The fourth proportional to 808,640,810.42, 1,209,769,744.46 and 612,469,329.75 is: 916,286,755.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,640,810.42 : 1,209,769,744.46 = 612,469,329.75 : x
  2. Step 2: Convert to fraction form
    808,640,810.42/1,209,769,744.46 = 612,469,329.75/x
  3. Step 3: Cross multiply
    808,640,810.42x = 1,209,769,744.46 × 612,469,329.75
  4. Step 4: Simplify right side
    808,640,810.42x = 740,946,864,538,182,528
  5. Step 5: Solve for x
    x = 740,946,864,538,182,528/808,640,810.42
  6. Step 6: Final answer
    x = 916,286,755.50

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1.5x scale

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.