Home / 20,616,772.74-28,450,366.89-11,450,005.98

Finding the Fourth Proportional to 20,616,772.74, 28,450,366.89 and 11,450,005.98

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Solution

The fourth proportional to 20,616,772.74, 28,450,366.89 and 11,450,005.98 is: 15,800,575.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616,772.74 : 28,450,366.89 = 11,450,005.98 : x
  2. Step 2: Convert to fraction form
    20,616,772.74/28,450,366.89 = 11,450,005.98/x
  3. Step 3: Cross multiply
    20,616,772.74x = 28,450,366.89 × 11,450,005.98
  4. Step 4: Simplify right side
    20,616,772.74x = 325,756,871,178,509.62
  5. Step 5: Solve for x
    x = 325,756,871,178,509.62/20,616,772.74
  6. Step 6: Final answer
    x = 15,800,575.35

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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.