Home / 5,100,867.69-7,649,880.32-1,689,421.41

Finding the Fourth Proportional to 5,100,867.69, 7,649,880.32 and 1,689,421.41

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Solution

The fourth proportional to 5,100,867.69, 7,649,880.32 and 1,689,421.41 is: 2,533,661.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100,867.69 : 7,649,880.32 = 1,689,421.41 : x
  2. Step 2: Convert to fraction form
    5,100,867.69/7,649,880.32 = 1,689,421.41/x
  3. Step 3: Cross multiply
    5,100,867.69x = 7,649,880.32 × 1,689,421.41
  4. Step 4: Simplify right side
    5,100,867.69x = 12,923,871,588,098.54
  5. Step 5: Solve for x
    x = 12,923,871,588,098.54/5,100,867.69
  6. Step 6: Final answer
    x = 2,533,661.40

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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.