Home / 19,164,911.40-28,747,367.10-17,779,228.20

Finding the Fourth Proportional to 19,164,911.40, 28,747,367.10 and 17,779,228.20

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Solution

The fourth proportional to 19,164,911.40, 28,747,367.10 and 17,779,228.20 is: 26,668,842.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,164,911.40 : 28,747,367.10 = 17,779,228.20 : x
  2. Step 2: Convert to fraction form
    19,164,911.40/28,747,367.10 = 17,779,228.20/x
  3. Step 3: Cross multiply
    19,164,911.40x = 28,747,367.10 × 17,779,228.20
  4. Step 4: Simplify right side
    19,164,911.40x = 511,105,999,820,072.25
  5. Step 5: Solve for x
    x = 511,105,999,820,072.25/19,164,911.40
  6. Step 6: Final answer
    x = 26,668,842.30

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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.