Home / 128,825,618.40-193,089,128.40-52,110,712.80

Finding the Fourth Proportional to 128,825,618.40, 193,089,128.40 and 52,110,712.80

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Solution

The fourth proportional to 128,825,618.40, 193,089,128.40 and 52,110,712.80 is: 78,105,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,825,618.40 : 193,089,128.40 = 52,110,712.80 : x
  2. Step 2: Convert to fraction form
    128,825,618.40/193,089,128.40 = 52,110,712.80/x
  3. Step 3: Cross multiply
    128,825,618.40x = 193,089,128.40 × 52,110,712.80
  4. Step 4: Simplify right side
    128,825,618.40x = 10,062,012,114,854,724
  5. Step 5: Solve for x
    x = 10,062,012,114,854,724/128,825,618.40
  6. Step 6: Final answer
    x = 78,105,676.80

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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.