Home / 13,475,420.20-20,213,130.30-7,407,807.40

Finding the Fourth Proportional to 13,475,420.20, 20,213,130.30 and 7,407,807.40

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Solution

The fourth proportional to 13,475,420.20, 20,213,130.30 and 7,407,807.40 is: 11,111,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475,420.20 : 20,213,130.30 = 7,407,807.40 : x
  2. Step 2: Convert to fraction form
    13,475,420.20/20,213,130.30 = 7,407,807.40/x
  3. Step 3: Cross multiply
    13,475,420.20x = 20,213,130.30 × 7,407,807.40
  4. Step 4: Simplify right side
    13,475,420.20x = 149,734,976,213,504.22
  5. Step 5: Solve for x
    x = 149,734,976,213,504.22/13,475,420.20
  6. Step 6: Final answer
    x = 11,111,711.10

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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.