Home / 128,820,336.40-193,164,311.40-37,932,115.60

Finding the Fourth Proportional to 128,820,336.40, 193,164,311.40 and 37,932,115.60

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Solution

The fourth proportional to 128,820,336.40, 193,164,311.40 and 37,932,115.60 is: 56,878,682.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,820,336.40 : 193,164,311.40 = 37,932,115.60 : x
  2. Step 2: Convert to fraction form
    128,820,336.40/193,164,311.40 = 37,932,115.60/x
  3. Step 3: Cross multiply
    128,820,336.40x = 193,164,311.40 × 37,932,115.60
  4. Step 4: Simplify right side
    128,820,336.40x = 7,327,130,989,819,198
  5. Step 5: Solve for x
    x = 7,327,130,989,819,198/128,820,336.40
  6. Step 6: Final answer
    x = 56,878,682.32

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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.