Home / 124,578,048.40-186,867,072.60-90,140,671.60

Finding the Fourth Proportional to 124,578,048.40, 186,867,072.60 and 90,140,671.60

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Solution

The fourth proportional to 124,578,048.40, 186,867,072.60 and 90,140,671.60 is: 135,211,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,578,048.40 : 186,867,072.60 = 90,140,671.60 : x
  2. Step 2: Convert to fraction form
    124,578,048.40/186,867,072.60 = 90,140,671.60/x
  3. Step 3: Cross multiply
    124,578,048.40x = 186,867,072.60 × 90,140,671.60
  4. Step 4: Simplify right side
    124,578,048.40x = 16,844,323,424,089,956
  5. Step 5: Solve for x
    x = 16,844,323,424,089,956/124,578,048.40
  6. Step 6: Final answer
    x = 135,211,007.40

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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.