Home / 128,825,615.40-193,089,123.90-52,110,709.80

Finding the Fourth Proportional to 128,825,615.40, 193,089,123.90 and 52,110,709.80

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Solution

The fourth proportional to 128,825,615.40, 193,089,123.90 and 52,110,709.80 is: 78,105,672.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,825,615.40 : 193,089,123.90 = 52,110,709.80 : x
  2. Step 2: Convert to fraction form
    128,825,615.40/193,089,123.90 = 52,110,709.80/x
  3. Step 3: Cross multiply
    128,825,615.40x = 193,089,123.90 × 52,110,709.80
  4. Step 4: Simplify right side
    128,825,615.40x = 10,062,011,301,089,144
  5. Step 5: Solve for x
    x = 10,062,011,301,089,144/128,825,615.40
  6. Step 6: Final answer
    x = 78,105,672.31

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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.