Home / 21,783,338.60-32,675,007.90-20,791,315.40

Finding the Fourth Proportional to 21,783,338.60, 32,675,007.90 and 20,791,315.40

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Solution

The fourth proportional to 21,783,338.60, 32,675,007.90 and 20,791,315.40 is: 31,186,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783,338.60 : 32,675,007.90 = 20,791,315.40 : x
  2. Step 2: Convert to fraction form
    21,783,338.60/32,675,007.90 = 20,791,315.40/x
  3. Step 3: Cross multiply
    21,783,338.60x = 32,675,007.90 × 20,791,315.40
  4. Step 4: Simplify right side
    21,783,338.60x = 679,356,394,946,391.62
  5. Step 5: Solve for x
    x = 679,356,394,946,391.62/21,783,338.60
  6. Step 6: Final answer
    x = 31,186,973.10

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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.