Home / 39,439,155.69-54,428,852.66-21,797,678.47

Finding the Fourth Proportional to 39,439,155.69, 54,428,852.66 and 21,797,678.47

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Solution

The fourth proportional to 39,439,155.69, 54,428,852.66 and 21,797,678.47 is: 30,082,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,439,155.69 : 54,428,852.66 = 21,797,678.47 : x
  2. Step 2: Convert to fraction form
    39,439,155.69/54,428,852.66 = 21,797,678.47/x
  3. Step 3: Cross multiply
    39,439,155.69x = 54,428,852.66 × 21,797,678.47
  4. Step 4: Simplify right side
    39,439,155.69x = 1,186,422,629,904,466.50
  5. Step 5: Solve for x
    x = 1,186,422,629,904,466.50/39,439,155.69
  6. Step 6: Final answer
    x = 30,082,353.67

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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.