Home / 128,715,364.40-193,077,712.20-37,848,138.80

Finding the Fourth Proportional to 128,715,364.40, 193,077,712.20 and 37,848,138.80

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Solution

The fourth proportional to 128,715,364.40, 193,077,712.20 and 37,848,138.80 is: 56,773,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,715,364.40 : 193,077,712.20 = 37,848,138.80 : x
  2. Step 2: Convert to fraction form
    128,715,364.40/193,077,712.20 = 37,848,138.80/x
  3. Step 3: Cross multiply
    128,715,364.40x = 193,077,712.20 × 37,848,138.80
  4. Step 4: Simplify right side
    128,715,364.40x = 7,307,632,050,532,052
  5. Step 5: Solve for x
    x = 7,307,632,050,532,052/128,715,364.40
  6. Step 6: Final answer
    x = 56,773,580.10

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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.