Home / 28,735,189.87-39,636,829.26-20,477,898

Finding the Fourth Proportional to 28,735,189.87, 39,636,829.26 and 20,477,898

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Solution

The fourth proportional to 28,735,189.87, 39,636,829.26 and 20,477,898 is: 28,246,862.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,735,189.87 : 39,636,829.26 = 20,477,898 : x
  2. Step 2: Convert to fraction form
    28,735,189.87/39,636,829.26 = 20,477,898/x
  3. Step 3: Cross multiply
    28,735,189.87x = 39,636,829.26 × 20,477,898
  4. Step 4: Simplify right side
    28,735,189.87x = 811,678,946,629,695.38
  5. Step 5: Solve for x
    x = 811,678,946,629,695.38/28,735,189.87
  6. Step 6: Final answer
    x = 28,246,862.13

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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.