Home / 25,128,001.20-37,692,001.80-20,089,153.20

Finding the Fourth Proportional to 25,128,001.20, 37,692,001.80 and 20,089,153.20

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Solution

The fourth proportional to 25,128,001.20, 37,692,001.80 and 20,089,153.20 is: 30,133,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,128,001.20 : 37,692,001.80 = 20,089,153.20 : x
  2. Step 2: Convert to fraction form
    25,128,001.20/37,692,001.80 = 20,089,153.20/x
  3. Step 3: Cross multiply
    25,128,001.20x = 37,692,001.80 × 20,089,153.20
  4. Step 4: Simplify right side
    25,128,001.20x = 757,200,398,574,875.62
  5. Step 5: Solve for x
    x = 757,200,398,574,875.62/25,128,001.20
  6. Step 6: Final answer
    x = 30,133,729.80

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1.5x scale

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.