Home / 5,090,478.32-7,634,094.60-1,678,128.96

Finding the Fourth Proportional to 5,090,478.32, 7,634,094.60 and 1,678,128.96

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Solution

The fourth proportional to 5,090,478.32, 7,634,094.60 and 1,678,128.96 is: 2,516,658.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090,478.32 : 7,634,094.60 = 1,678,128.96 : x
  2. Step 2: Convert to fraction form
    5,090,478.32/7,634,094.60 = 1,678,128.96/x
  3. Step 3: Cross multiply
    5,090,478.32x = 7,634,094.60 × 1,678,128.96
  4. Step 4: Simplify right side
    5,090,478.32x = 12,810,995,231,639.62
  5. Step 5: Solve for x
    x = 12,810,995,231,639.62/5,090,478.32
  6. Step 6: Final answer
    x = 2,516,658.44

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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.