Home / 117,359,940.80-176,039,911.20-112,384,078.40

Finding the Fourth Proportional to 117,359,940.80, 176,039,911.20 and 112,384,078.40

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Solution

The fourth proportional to 117,359,940.80, 176,039,911.20 and 112,384,078.40 is: 168,576,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,359,940.80 : 176,039,911.20 = 112,384,078.40 : x
  2. Step 2: Convert to fraction form
    117,359,940.80/176,039,911.20 = 112,384,078.40/x
  3. Step 3: Cross multiply
    117,359,940.80x = 176,039,911.20 × 112,384,078.40
  4. Step 4: Simplify right side
    117,359,940.80x = 19,784,083,181,829,836
  5. Step 5: Solve for x
    x = 19,784,083,181,829,836/117,359,940.80
  6. Step 6: Final answer
    x = 168,576,117.60

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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.