Home / 30,494,938,716.36-42,038,662,651.52-21,310,953,964.56

Finding the Fourth Proportional to 30,494,938,716.36, 42,038,662,651.52 and 21,310,953,964.56

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Solution

The fourth proportional to 30,494,938,716.36, 42,038,662,651.52 and 21,310,953,964.56 is: 29,378,121,164.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,494,938,716.36 : 42,038,662,651.52 = 21,310,953,964.56 : x
  2. Step 2: Convert to fraction form
    30,494,938,716.36/42,038,662,651.52 = 21,310,953,964.56/x
  3. Step 3: Cross multiply
    30,494,938,716.36x = 42,038,662,651.52 × 21,310,953,964.56
  4. Step 4: Simplify right side
    30,494,938,716.36x = 895,884,004,498,103,992,320
  5. Step 5: Solve for x
    x = 895,884,004,498,103,992,320/30,494,938,716.36
  6. Step 6: Final answer
    x = 29,378,121,164.00

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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.