Home / 19,008,005.20-28,512,007.80-11,431,070.80

Finding the Fourth Proportional to 19,008,005.20, 28,512,007.80 and 11,431,070.80

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Solution

The fourth proportional to 19,008,005.20, 28,512,007.80 and 11,431,070.80 is: 17,146,606.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008,005.20 : 28,512,007.80 = 11,431,070.80 : x
  2. Step 2: Convert to fraction form
    19,008,005.20/28,512,007.80 = 11,431,070.80/x
  3. Step 3: Cross multiply
    19,008,005.20x = 28,512,007.80 × 11,431,070.80
  4. Step 4: Simplify right side
    19,008,005.20x = 325,922,779,811,952.25
  5. Step 5: Solve for x
    x = 325,922,779,811,952.25/19,008,005.20
  6. Step 6: Final answer
    x = 17,146,606.20

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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.