Home / 1,322,849,900.90-1,825,518,376.41-728,121,669.86

Finding the Fourth Proportional to 1,322,849,900.90, 1,825,518,376.41 and 728,121,669.86

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Solution

The fourth proportional to 1,322,849,900.90, 1,825,518,376.41 and 728,121,669.86 is: 1,004,799,930.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,849,900.90 : 1,825,518,376.41 = 728,121,669.86 : x
  2. Step 2: Convert to fraction form
    1,322,849,900.90/1,825,518,376.41 = 728,121,669.86/x
  3. Step 3: Cross multiply
    1,322,849,900.90x = 1,825,518,376.41 × 728,121,669.86
  4. Step 4: Simplify right side
    1,322,849,900.90x = 1,329,199,488,591,765,248
  5. Step 5: Solve for x
    x = 1,329,199,488,591,765,248/1,322,849,900.90
  6. Step 6: Final answer
    x = 1,004,799,930.58

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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.