Home / 13,122,113.20-19,683,169.80-8,020,279.60

Finding the Fourth Proportional to 13,122,113.20, 19,683,169.80 and 8,020,279.60

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Solution

The fourth proportional to 13,122,113.20, 19,683,169.80 and 8,020,279.60 is: 12,030,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,113.20 : 19,683,169.80 = 8,020,279.60 : x
  2. Step 2: Convert to fraction form
    13,122,113.20/19,683,169.80 = 8,020,279.60/x
  3. Step 3: Cross multiply
    13,122,113.20x = 19,683,169.80 × 8,020,279.60
  4. Step 4: Simplify right side
    13,122,113.20x = 157,864,525,210,276.09
  5. Step 5: Solve for x
    x = 157,864,525,210,276.09/13,122,113.20
  6. Step 6: Final answer
    x = 12,030,419.40

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Similar ratio
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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.