Home / 811,190,619,277.60-1,216,785,928,916.40-776,797,458,368.80

Finding the Fourth Proportional to 811,190,619,277.60, 1,216,785,928,916.40 and 776,797,458,368.80

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Solution

The fourth proportional to 811,190,619,277.60, 1,216,785,928,916.40 and 776,797,458,368.80 is: 1,165,196,187,553.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,190,619,277.60 : 1,216,785,928,916.40 = 776,797,458,368.80 : x
  2. Step 2: Convert to fraction form
    811,190,619,277.60/1,216,785,928,916.40 = 776,797,458,368.80/x
  3. Step 3: Cross multiply
    811,190,619,277.60x = 1,216,785,928,916.40 × 776,797,458,368.80
  4. Step 4: Simplify right side
    811,190,619,277.60x = 945,196,216,961,178,840,072,192
  5. Step 5: Solve for x
    x = 945,196,216,961,178,840,072,192/811,190,619,277.60
  6. Step 6: Final answer
    x = 1,165,196,187,553.20

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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.