Home / 12,089,425.60-18,123,640.80-7,292,022.40

Finding the Fourth Proportional to 12,089,425.60, 18,123,640.80 and 7,292,022.40

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Solution

The fourth proportional to 12,089,425.60, 18,123,640.80 and 7,292,022.40 is: 10,931,701.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089,425.60 : 18,123,640.80 = 7,292,022.40 : x
  2. Step 2: Convert to fraction form
    12,089,425.60/18,123,640.80 = 7,292,022.40/x
  3. Step 3: Cross multiply
    12,089,425.60x = 18,123,640.80 × 7,292,022.40
  4. Step 4: Simplify right side
    12,089,425.60x = 132,157,994,683,153.94
  5. Step 5: Solve for x
    x = 132,157,994,683,153.94/12,089,425.60
  6. Step 6: Final answer
    x = 10,931,701.72

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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.