Home / 9,290,187.36-12,820,021.20-5,160,484.80

Finding the Fourth Proportional to 9,290,187.36, 12,820,021.20 and 5,160,484.80

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Solution

The fourth proportional to 9,290,187.36, 12,820,021.20 and 5,160,484.80 is: 7,121,226.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,290,187.36 : 12,820,021.20 = 5,160,484.80 : x
  2. Step 2: Convert to fraction form
    9,290,187.36/12,820,021.20 = 5,160,484.80/x
  3. Step 3: Cross multiply
    9,290,187.36x = 12,820,021.20 × 5,160,484.80
  4. Step 4: Simplify right side
    9,290,187.36x = 66,157,524,538,277.75
  5. Step 5: Solve for x
    x = 66,157,524,538,277.75/9,290,187.36
  6. Step 6: Final answer
    x = 7,121,226.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.