Home / 12,089,213.60-18,123,322.80-7,291,810.40

Finding the Fourth Proportional to 12,089,213.60, 18,123,322.80 and 7,291,810.40

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Solution

The fourth proportional to 12,089,213.60, 18,123,322.80 and 7,291,810.40 is: 10,931,383.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089,213.60 : 18,123,322.80 = 7,291,810.40 : x
  2. Step 2: Convert to fraction form
    12,089,213.60/18,123,322.80 = 7,291,810.40/x
  3. Step 3: Cross multiply
    12,089,213.60x = 18,123,322.80 × 7,291,810.40
  4. Step 4: Simplify right side
    12,089,213.60x = 132,151,833,675,597.12
  5. Step 5: Solve for x
    x = 132,151,833,675,597.12/12,089,213.60
  6. Step 6: Final answer
    x = 10,931,383.80

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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.