Home / 12,356,845.60-18,535,268.40-10,215,335.20

Finding the Fourth Proportional to 12,356,845.60, 18,535,268.40 and 10,215,335.20

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Solution

The fourth proportional to 12,356,845.60, 18,535,268.40 and 10,215,335.20 is: 15,323,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356,845.60 : 18,535,268.40 = 10,215,335.20 : x
  2. Step 2: Convert to fraction form
    12,356,845.60/18,535,268.40 = 10,215,335.20/x
  3. Step 3: Cross multiply
    12,356,845.60x = 18,535,268.40 × 10,215,335.20
  4. Step 4: Simplify right side
    12,356,845.60x = 189,343,979,727,967.66
  5. Step 5: Solve for x
    x = 189,343,979,727,967.66/12,356,845.60
  6. Step 6: Final answer
    x = 15,323,002.80

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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.