Home / 28,919,021.40-39,897,777.06-19,001,246.13

Finding the Fourth Proportional to 28,919,021.40, 39,897,777.06 and 19,001,246.13

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Solution

The fourth proportional to 28,919,021.40, 39,897,777.06 and 19,001,246.13 is: 26,214,838.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,919,021.40 : 39,897,777.06 = 19,001,246.13 : x
  2. Step 2: Convert to fraction form
    28,919,021.40/39,897,777.06 = 19,001,246.13/x
  3. Step 3: Cross multiply
    28,919,021.40x = 39,897,777.06 × 19,001,246.13
  4. Step 4: Simplify right side
    28,919,021.40x = 758,107,481,956,927.75
  5. Step 5: Solve for x
    x = 758,107,481,956,927.75/28,919,021.40
  6. Step 6: Final answer
    x = 26,214,838.72

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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.