Home / 13,260,666.40-19,890,999.60-4,741,280.80

Finding the Fourth Proportional to 13,260,666.40, 19,890,999.60 and 4,741,280.80

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Solution

The fourth proportional to 13,260,666.40, 19,890,999.60 and 4,741,280.80 is: 7,111,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260,666.40 : 19,890,999.60 = 4,741,280.80 : x
  2. Step 2: Convert to fraction form
    13,260,666.40/19,890,999.60 = 4,741,280.80/x
  3. Step 3: Cross multiply
    13,260,666.40x = 19,890,999.60 × 4,741,280.80
  4. Step 4: Simplify right side
    13,260,666.40x = 94,308,814,496,287.69
  5. Step 5: Solve for x
    x = 94,308,814,496,287.69/13,260,666.40
  6. Step 6: Final answer
    x = 7,111,921.20

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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.