Home / 28,263,690.40-42,401,065.20-12,089,610.40

Finding the Fourth Proportional to 28,263,690.40, 42,401,065.20 and 12,089,610.40

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Solution

The fourth proportional to 28,263,690.40, 42,401,065.20 and 12,089,610.40 is: 18,136,780.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263,690.40 : 42,401,065.20 = 12,089,610.40 : x
  2. Step 2: Convert to fraction form
    28,263,690.40/42,401,065.20 = 12,089,610.40/x
  3. Step 3: Cross multiply
    28,263,690.40x = 42,401,065.20 × 12,089,610.40
  4. Step 4: Simplify right side
    28,263,690.40x = 512,612,358,812,998.12
  5. Step 5: Solve for x
    x = 512,612,358,812,998.12/28,263,690.40
  6. Step 6: Final answer
    x = 18,136,780.85

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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.