Home / 12,738,877.60-19,089,420.71-9,356,550.88

Finding the Fourth Proportional to 12,738,877.60, 19,089,420.71 and 9,356,550.88

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Solution

The fourth proportional to 12,738,877.60, 19,089,420.71 and 9,356,550.88 is: 14,020,947.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738,877.60 : 19,089,420.71 = 9,356,550.88 : x
  2. Step 2: Convert to fraction form
    12,738,877.60/19,089,420.71 = 9,356,550.88/x
  3. Step 3: Cross multiply
    12,738,877.60x = 19,089,420.71 × 9,356,550.88
  4. Step 4: Simplify right side
    12,738,877.60x = 178,611,136,142,840.75
  5. Step 5: Solve for x
    x = 178,611,136,142,840.75/12,738,877.60
  6. Step 6: Final answer
    x = 14,020,947.67

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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.