Home / 20,803,938.90-31,206,005.55-7,340,766.90

Finding the Fourth Proportional to 20,803,938.90, 31,206,005.55 and 7,340,766.90

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Solution

The fourth proportional to 20,803,938.90, 31,206,005.55 and 7,340,766.90 is: 11,011,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803,938.90 : 31,206,005.55 = 7,340,766.90 : x
  2. Step 2: Convert to fraction form
    20,803,938.90/31,206,005.55 = 7,340,766.90/x
  3. Step 3: Cross multiply
    20,803,938.90x = 31,206,005.55 × 7,340,766.90
  4. Step 4: Simplify right side
    20,803,938.90x = 229,076,012,622,656.31
  5. Step 5: Solve for x
    x = 229,076,012,622,656.31/20,803,938.90
  6. Step 6: Final answer
    x = 11,011,184.65

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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.