Home / 785,178,115,965.45-1,176,117,808,338.90-498,188,448,004.20

Finding the Fourth Proportional to 785,178,115,965.45, 1,176,117,808,338.90 and 498,188,448,004.20

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Solution

The fourth proportional to 785,178,115,965.45, 1,176,117,808,338.90 and 498,188,448,004.20 is: 746,236,164,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,178,115,965.45 : 1,176,117,808,338.90 = 498,188,448,004.20 : x
  2. Step 2: Convert to fraction form
    785,178,115,965.45/1,176,117,808,338.90 = 498,188,448,004.20/x
  3. Step 3: Cross multiply
    785,178,115,965.45x = 1,176,117,808,338.90 × 498,188,448,004.20
  4. Step 4: Simplify right side
    785,178,115,965.45x = 585,928,305,606,457,726,861,312
  5. Step 5: Solve for x
    x = 585,928,305,606,457,726,861,312/785,178,115,965.45
  6. Step 6: Final answer
    x = 746,236,164,371.45

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Double scale
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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.