Home / 1,214,788,338-1,676,399,559.84-657,858,640.32

Finding the Fourth Proportional to 1,214,788,338, 1,676,399,559.84 and 657,858,640.32

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Solution

The fourth proportional to 1,214,788,338, 1,676,399,559.84 and 657,858,640.32 is: 907,840,403.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,788,338 : 1,676,399,559.84 = 657,858,640.32 : x
  2. Step 2: Convert to fraction form
    1,214,788,338/1,676,399,559.84 = 657,858,640.32/x
  3. Step 3: Cross multiply
    1,214,788,338x = 1,676,399,559.84 × 657,858,640.32
  4. Step 4: Simplify right side
    1,214,788,338x = 1,102,833,935,069,388,928
  5. Step 5: Solve for x
    x = 1,102,833,935,069,388,928/1,214,788,338
  6. Step 6: Final answer
    x = 907,840,403.61

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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.