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Finding the Fourth Proportional to 20,155,392,953.80, 30,233,089,430.70 and 20,155,392,953.80

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Solution

The fourth proportional to 20,155,392,953.80, 30,233,089,430.70 and 20,155,392,953.80 is: 30,233,089,430.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,392,953.80 : 30,233,089,430.70 = 20,155,392,953.80 : x
  2. Step 2: Convert to fraction form
    20,155,392,953.80/30,233,089,430.70 = 20,155,392,953.80/x
  3. Step 3: Cross multiply
    20,155,392,953.80x = 30,233,089,430.70 × 20,155,392,953.80
  4. Step 4: Simplify right side
    20,155,392,953.80x = 609,359,797,683,135,971,328
  5. Step 5: Solve for x
    x = 609,359,797,683,135,971,328/20,155,392,953.80
  6. Step 6: Final answer
    x = 30,233,089,430.70

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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.