Home / 1,298,355,009,935.30-1,790,985,505,103.20-809,765,696,489.02

Finding the Fourth Proportional to 1,298,355,009,935.30, 1,790,985,505,103.20 and 809,765,696,489.02

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Solution

The fourth proportional to 1,298,355,009,935.30, 1,790,985,505,103.20 and 809,765,696,489.02 is: 1,117,012,384,011.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,355,009,935.30 : 1,790,985,505,103.20 = 809,765,696,489.02 : x
  2. Step 2: Convert to fraction form
    1,298,355,009,935.30/1,790,985,505,103.20 = 809,765,696,489.02/x
  3. Step 3: Cross multiply
    1,298,355,009,935.30x = 1,790,985,505,103.20 × 809,765,696,489.02
  4. Step 4: Simplify right side
    1,298,355,009,935.30x = 1,450,278,624,941,632,108,101,632
  5. Step 5: Solve for x
    x = 1,450,278,624,941,632,108,101,632/1,298,355,009,935.30
  6. Step 6: Final answer
    x = 1,117,012,384,011.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.