Home / 128,662,793.11-177,556,025.72-69,925,461.26

Finding the Fourth Proportional to 128,662,793.11, 177,556,025.72 and 69,925,461.26

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Solution

The fourth proportional to 128,662,793.11, 177,556,025.72 and 69,925,461.26 is: 96,497,881.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,662,793.11 : 177,556,025.72 = 69,925,461.26 : x
  2. Step 2: Convert to fraction form
    128,662,793.11/177,556,025.72 = 69,925,461.26/x
  3. Step 3: Cross multiply
    128,662,793.11x = 177,556,025.72 × 69,925,461.26
  4. Step 4: Simplify right side
    128,662,793.11x = 12,415,686,997,613,798
  5. Step 5: Solve for x
    x = 12,415,686,997,613,798/128,662,793.11
  6. Step 6: Final answer
    x = 96,497,881.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.