Home / 12,089,211.60-18,123,319.80-7,291,808.40

Finding the Fourth Proportional to 12,089,211.60, 18,123,319.80 and 7,291,808.40

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Solution

The fourth proportional to 12,089,211.60, 18,123,319.80 and 7,291,808.40 is: 10,931,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089,211.60 : 18,123,319.80 = 7,291,808.40 : x
  2. Step 2: Convert to fraction form
    12,089,211.60/18,123,319.80 = 7,291,808.40/x
  3. Step 3: Cross multiply
    12,089,211.60x = 18,123,319.80 × 7,291,808.40
  4. Step 4: Simplify right side
    12,089,211.60x = 132,151,775,553,526.33
  5. Step 5: Solve for x
    x = 132,151,775,553,526.33/12,089,211.60
  6. Step 6: Final answer
    x = 10,931,380.80

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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.