Home / 10,405,512.60-15,608,268.90-9,980,359.80

Finding the Fourth Proportional to 10,405,512.60, 15,608,268.90 and 9,980,359.80

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Solution

The fourth proportional to 10,405,512.60, 15,608,268.90 and 9,980,359.80 is: 14,970,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405,512.60 : 15,608,268.90 = 9,980,359.80 : x
  2. Step 2: Convert to fraction form
    10,405,512.60/15,608,268.90 = 9,980,359.80/x
  3. Step 3: Cross multiply
    10,405,512.60x = 15,608,268.90 × 9,980,359.80
  4. Step 4: Simplify right side
    10,405,512.60x = 155,776,139,477,150.25
  5. Step 5: Solve for x
    x = 155,776,139,477,150.25/10,405,512.60
  6. Step 6: Final answer
    x = 14,970,539.70

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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.