Home / 31,172,764,252.68-43,021,620,970.20-18,966,335,940.72

Finding the Fourth Proportional to 31,172,764,252.68, 43,021,620,970.20 and 18,966,335,940.72

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Solution

The fourth proportional to 31,172,764,252.68, 43,021,620,970.20 and 18,966,335,940.72 is: 26,175,494,397.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,172,764,252.68 : 43,021,620,970.20 = 18,966,335,940.72 : x
  2. Step 2: Convert to fraction form
    31,172,764,252.68/43,021,620,970.20 = 18,966,335,940.72/x
  3. Step 3: Cross multiply
    31,172,764,252.68x = 43,021,620,970.20 × 18,966,335,940.72
  4. Step 4: Simplify right side
    31,172,764,252.68x = 815,962,516,035,137,437,696
  5. Step 5: Solve for x
    x = 815,962,516,035,137,437,696/31,172,764,252.68
  6. Step 6: Final answer
    x = 26,175,494,397.00

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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.