Home / 1,322,378,763.90-1,983,855,124.16-402,231,187.68

Finding the Fourth Proportional to 1,322,378,763.90, 1,983,855,124.16 and 402,231,187.68

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Solution

The fourth proportional to 1,322,378,763.90, 1,983,855,124.16 and 402,231,187.68 is: 603,434,072.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,378,763.90 : 1,983,855,124.16 = 402,231,187.68 : x
  2. Step 2: Convert to fraction form
    1,322,378,763.90/1,983,855,124.16 = 402,231,187.68/x
  3. Step 3: Cross multiply
    1,322,378,763.90x = 1,983,855,124.16 × 402,231,187.68
  4. Step 4: Simplify right side
    1,322,378,763.90x = 797,968,402,773,919,488
  5. Step 5: Solve for x
    x = 797,968,402,773,919,488/1,322,378,763.90
  6. Step 6: Final answer
    x = 603,434,072.41

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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.