Home / 1,638,460,336.05-2,458,540,809.68-718,429,676.85

Finding the Fourth Proportional to 1,638,460,336.05, 2,458,540,809.68 and 718,429,676.85

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Solution

The fourth proportional to 1,638,460,336.05, 2,458,540,809.68 and 718,429,676.85 is: 1,078,017,356.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,460,336.05 : 2,458,540,809.68 = 718,429,676.85 : x
  2. Step 2: Convert to fraction form
    1,638,460,336.05/2,458,540,809.68 = 718,429,676.85/x
  3. Step 3: Cross multiply
    1,638,460,336.05x = 2,458,540,809.68 × 718,429,676.85
  4. Step 4: Simplify right side
    1,638,460,336.05x = 1,766,288,679,417,347,840
  5. Step 5: Solve for x
    x = 1,766,288,679,417,347,840/1,638,460,336.05
  6. Step 6: Final answer
    x = 1,078,017,356.02

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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.