Home / 128,539,086.30-192,808,629.45-37,662,675.30

Finding the Fourth Proportional to 128,539,086.30, 192,808,629.45 and 37,662,675.30

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Solution

The fourth proportional to 128,539,086.30, 192,808,629.45 and 37,662,675.30 is: 56,494,012.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,539,086.30 : 192,808,629.45 = 37,662,675.30 : x
  2. Step 2: Convert to fraction form
    128,539,086.30/192,808,629.45 = 37,662,675.30/x
  3. Step 3: Cross multiply
    128,539,086.30x = 192,808,629.45 × 37,662,675.30
  4. Step 4: Simplify right side
    128,539,086.30x = 7,261,688,806,013,367
  5. Step 5: Solve for x
    x = 7,261,688,806,013,367/128,539,086.30
  6. Step 6: Final answer
    x = 56,494,012.95

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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.