Home / 28,072,598.54-42,112,914.60-8,643,468.38

Finding the Fourth Proportional to 28,072,598.54, 42,112,914.60 and 8,643,468.38

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Solution

The fourth proportional to 28,072,598.54, 42,112,914.60 and 8,643,468.38 is: 12,966,439.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,598.54 : 42,112,914.60 = 8,643,468.38 : x
  2. Step 2: Convert to fraction form
    28,072,598.54/42,112,914.60 = 8,643,468.38/x
  3. Step 3: Cross multiply
    28,072,598.54x = 42,112,914.60 × 8,643,468.38
  4. Step 4: Simplify right side
    28,072,598.54x = 364,001,645,524,175.81
  5. Step 5: Solve for x
    x = 364,001,645,524,175.81/28,072,598.54
  6. Step 6: Final answer
    x = 12,966,439.32

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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.