Home / 7,339,728-10,128,824.64-4,120,464

Finding the Fourth Proportional to 7,339,728, 10,128,824.64 and 4,120,464

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Solution

The fourth proportional to 7,339,728, 10,128,824.64 and 4,120,464 is: 5,686,240.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339,728 : 10,128,824.64 = 4,120,464 : x
  2. Step 2: Convert to fraction form
    7,339,728/10,128,824.64 = 4,120,464/x
  3. Step 3: Cross multiply
    7,339,728x = 10,128,824.64 × 4,120,464
  4. Step 4: Simplify right side
    7,339,728x = 41,735,457,291,432.96
  5. Step 5: Solve for x
    x = 41,735,457,291,432.96/7,339,728
  6. Step 6: Final answer
    x = 5,686,240.32

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Double scale
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Similar ratio
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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.