Home / 28,749,681.69-39,669,880.19-16,987,311.38

Finding the Fourth Proportional to 28,749,681.69, 39,669,880.19 and 16,987,311.38

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Solution

The fourth proportional to 28,749,681.69, 39,669,880.19 and 16,987,311.38 is: 23,439,724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749,681.69 : 39,669,880.19 = 16,987,311.38 : x
  2. Step 2: Convert to fraction form
    28,749,681.69/39,669,880.19 = 16,987,311.38/x
  3. Step 3: Cross multiply
    28,749,681.69x = 39,669,880.19 × 16,987,311.38
  4. Step 4: Simplify right side
    28,749,681.69x = 673,884,606,911,537.62
  5. Step 5: Solve for x
    x = 673,884,606,911,537.62/28,749,681.69
  6. Step 6: Final answer
    x = 23,439,724.10

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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.