Home / 99,089,999.40-148,634,999.10-90,161,790.60

Finding the Fourth Proportional to 99,089,999.40, 148,634,999.10 and 90,161,790.60

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Solution

The fourth proportional to 99,089,999.40, 148,634,999.10 and 90,161,790.60 is: 135,242,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,089,999.40 : 148,634,999.10 = 90,161,790.60 : x
  2. Step 2: Convert to fraction form
    99,089,999.40/148,634,999.10 = 90,161,790.60/x
  3. Step 3: Cross multiply
    99,089,999.40x = 148,634,999.10 × 90,161,790.60
  4. Step 4: Simplify right side
    99,089,999.40x = 13,401,197,664,685,388
  5. Step 5: Solve for x
    x = 13,401,197,664,685,388/99,089,999.40
  6. Step 6: Final answer
    x = 135,242,685.90

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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.