Home / 21,295,091.60-31,942,637.40-12,771,040.40

Finding the Fourth Proportional to 21,295,091.60, 31,942,637.40 and 12,771,040.40

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Solution

The fourth proportional to 21,295,091.60, 31,942,637.40 and 12,771,040.40 is: 19,156,560.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295,091.60 : 31,942,637.40 = 12,771,040.40 : x
  2. Step 2: Convert to fraction form
    21,295,091.60/31,942,637.40 = 12,771,040.40/x
  3. Step 3: Cross multiply
    21,295,091.60x = 31,942,637.40 × 12,771,040.40
  4. Step 4: Simplify right side
    21,295,091.60x = 407,940,712,717,950.94
  5. Step 5: Solve for x
    x = 407,940,712,717,950.94/21,295,091.60
  6. Step 6: Final answer
    x = 19,156,560.60

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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.