Home / 20,947,968.02-28,907,741.88-12,127,790.94

Finding the Fourth Proportional to 20,947,968.02, 28,907,741.88 and 12,127,790.94

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Solution

The fourth proportional to 20,947,968.02, 28,907,741.88 and 12,127,790.94 is: 16,736,088.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,947,968.02 : 28,907,741.88 = 12,127,790.94 : x
  2. Step 2: Convert to fraction form
    20,947,968.02/28,907,741.88 = 12,127,790.94/x
  3. Step 3: Cross multiply
    20,947,968.02x = 28,907,741.88 × 12,127,790.94
  4. Step 4: Simplify right side
    20,947,968.02x = 350,587,050,068,122.56
  5. Step 5: Solve for x
    x = 350,587,050,068,122.56/20,947,968.02
  6. Step 6: Final answer
    x = 16,736,088.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.