Home / 8,990,577.12-12,406,719.60-5,507,240.16

Finding the Fourth Proportional to 8,990,577.12, 12,406,719.60 and 5,507,240.16

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Solution

The fourth proportional to 8,990,577.12, 12,406,719.60 and 5,507,240.16 is: 7,599,821.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990,577.12 : 12,406,719.60 = 5,507,240.16 : x
  2. Step 2: Convert to fraction form
    8,990,577.12/12,406,719.60 = 5,507,240.16/x
  3. Step 3: Cross multiply
    8,990,577.12x = 12,406,719.60 × 5,507,240.16
  4. Step 4: Simplify right side
    8,990,577.12x = 68,326,784,434,979.13
  5. Step 5: Solve for x
    x = 68,326,784,434,979.13/8,990,577.12
  6. Step 6: Final answer
    x = 7,599,821.85

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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.