Home / 19,708,643.54-27,000,389.92-18,971,786.90

Finding the Fourth Proportional to 19,708,643.54, 27,000,389.92 and 18,971,786.90

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Solution

The fourth proportional to 19,708,643.54, 27,000,389.92 and 18,971,786.90 is: 25,990,913.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708,643.54 : 27,000,389.92 = 18,971,786.90 : x
  2. Step 2: Convert to fraction form
    19,708,643.54/27,000,389.92 = 18,971,786.90/x
  3. Step 3: Cross multiply
    19,708,643.54x = 27,000,389.92 × 18,971,786.90
  4. Step 4: Simplify right side
    19,708,643.54x = 512,245,643,779,148.06
  5. Step 5: Solve for x
    x = 512,245,643,779,148.06/19,708,643.54
  6. Step 6: Final answer
    x = 25,990,913.21

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.