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Finding the Fourth Proportional to 100,512,004.80, 150,768,007.20 and 35,888,779.20

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Solution

The fourth proportional to 100,512,004.80, 150,768,007.20 and 35,888,779.20 is: 53,833,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,512,004.80 : 150,768,007.20 = 35,888,779.20 : x
  2. Step 2: Convert to fraction form
    100,512,004.80/150,768,007.20 = 35,888,779.20/x
  3. Step 3: Cross multiply
    100,512,004.80x = 150,768,007.20 × 35,888,779.20
  4. Step 4: Simplify right side
    100,512,004.80x = 5,410,879,720,824,810
  5. Step 5: Solve for x
    x = 5,410,879,720,824,810/100,512,004.80
  6. Step 6: Final answer
    x = 53,833,168.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.