Home / 128,662,783.48-177,556,012.46-69,925,451.64

Finding the Fourth Proportional to 128,662,783.48, 177,556,012.46 and 69,925,451.64

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Solution

The fourth proportional to 128,662,783.48, 177,556,012.46 and 69,925,451.64 is: 96,497,868.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,662,783.48 : 177,556,012.46 = 69,925,451.64 : x
  2. Step 2: Convert to fraction form
    128,662,783.48/177,556,012.46 = 69,925,451.64/x
  3. Step 3: Cross multiply
    128,662,783.48x = 177,556,012.46 × 69,925,451.64
  4. Step 4: Simplify right side
    128,662,783.48x = 12,415,684,362,662,968
  5. Step 5: Solve for x
    x = 12,415,684,362,662,968/128,662,783.48
  6. Step 6: Final answer
    x = 96,497,868.51

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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.