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Finding the Fourth Proportional to 13,398,312.40, 20,097,468.60 and 8,296,478.80

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Solution

The fourth proportional to 13,398,312.40, 20,097,468.60 and 8,296,478.80 is: 12,444,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398,312.40 : 20,097,468.60 = 8,296,478.80 : x
  2. Step 2: Convert to fraction form
    13,398,312.40/20,097,468.60 = 8,296,478.80/x
  3. Step 3: Cross multiply
    13,398,312.40x = 20,097,468.60 × 8,296,478.80
  4. Step 4: Simplify right side
    13,398,312.40x = 166,738,222,173,565.69
  5. Step 5: Solve for x
    x = 166,738,222,173,565.69/13,398,312.40
  6. Step 6: Final answer
    x = 12,444,718.20

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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.