Home / 128,825,378.40-193,171,874.40-37,937,157.60

Finding the Fourth Proportional to 128,825,378.40, 193,171,874.40 and 37,937,157.60

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Solution

The fourth proportional to 128,825,378.40, 193,171,874.40 and 37,937,157.60 is: 56,886,243.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,825,378.40 : 193,171,874.40 = 37,937,157.60 : x
  2. Step 2: Convert to fraction form
    128,825,378.40/193,171,874.40 = 37,937,157.60/x
  3. Step 3: Cross multiply
    128,825,378.40x = 193,171,874.40 × 37,937,157.60
  4. Step 4: Simplify right side
    128,825,378.40x = 7,328,391,843,000,206
  5. Step 5: Solve for x
    x = 7,328,391,843,000,206/128,825,378.40
  6. Step 6: Final answer
    x = 56,886,243.49

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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.