Home / 128,897,954.36-193,345,038.26-31,853,659.65

Finding the Fourth Proportional to 128,897,954.36, 193,345,038.26 and 31,853,659.65

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Solution

The fourth proportional to 128,897,954.36, 193,345,038.26 and 31,853,659.65 is: 47,780,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,897,954.36 : 193,345,038.26 = 31,853,659.65 : x
  2. Step 2: Convert to fraction form
    128,897,954.36/193,345,038.26 = 31,853,659.65/x
  3. Step 3: Cross multiply
    128,897,954.36x = 193,345,038.26 × 31,853,659.65
  4. Step 4: Simplify right side
    128,897,954.36x = 6,158,747,043,750,268
  5. Step 5: Solve for x
    x = 6,158,747,043,750,268/128,897,954.36
  6. Step 6: Final answer
    x = 47,780,021.60

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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.