Home / 21,200,501.70-31,800,752.55-14,020,143.30

Finding the Fourth Proportional to 21,200,501.70, 31,800,752.55 and 14,020,143.30

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Solution

The fourth proportional to 21,200,501.70, 31,800,752.55 and 14,020,143.30 is: 21,030,214.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200,501.70 : 31,800,752.55 = 14,020,143.30 : x
  2. Step 2: Convert to fraction form
    21,200,501.70/31,800,752.55 = 14,020,143.30/x
  3. Step 3: Cross multiply
    21,200,501.70x = 31,800,752.55 × 14,020,143.30
  4. Step 4: Simplify right side
    21,200,501.70x = 445,851,107,798,840.44
  5. Step 5: Solve for x
    x = 445,851,107,798,840.44/21,200,501.70
  6. Step 6: Final answer
    x = 21,030,214.95

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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.