Home / 1,298,355,010,036.40-1,790,985,505,240.70-809,765,696,588.90

Finding the Fourth Proportional to 1,298,355,010,036.40, 1,790,985,505,240.70 and 809,765,696,588.90

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Solution

The fourth proportional to 1,298,355,010,036.40, 1,790,985,505,240.70 and 809,765,696,588.90 is: 1,117,012,384,148.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,355,010,036.40 : 1,790,985,505,240.70 = 809,765,696,588.90 : x
  2. Step 2: Convert to fraction form
    1,298,355,010,036.40/1,790,985,505,240.70 = 809,765,696,588.90/x
  3. Step 3: Cross multiply
    1,298,355,010,036.40x = 1,790,985,505,240.70 × 809,765,696,588.90
  4. Step 4: Simplify right side
    1,298,355,010,036.40x = 1,450,278,625,231,858,349,113,344
  5. Step 5: Solve for x
    x = 1,450,278,625,231,858,349,113,344/1,298,355,010,036.40
  6. Step 6: Final answer
    x = 1,117,012,384,148.46

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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.