Home / 28,685,622.87-39,585,004.69-15,632,601.53

Finding the Fourth Proportional to 28,685,622.87, 39,585,004.69 and 15,632,601.53

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Solution

The fourth proportional to 28,685,622.87, 39,585,004.69 and 15,632,601.53 is: 21,572,360.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685,622.87 : 39,585,004.69 = 15,632,601.53 : x
  2. Step 2: Convert to fraction form
    28,685,622.87/39,585,004.69 = 15,632,601.53/x
  3. Step 3: Cross multiply
    28,685,622.87x = 39,585,004.69 × 15,632,601.53
  4. Step 4: Simplify right side
    28,685,622.87x = 618,816,604,881,951.12
  5. Step 5: Solve for x
    x = 618,816,604,881,951.12/28,685,622.87
  6. Step 6: Final answer
    x = 21,572,360.75

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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.