Home / 21,285,516.54-29,374,041.22-12,118,159.28

Finding the Fourth Proportional to 21,285,516.54, 29,374,041.22 and 12,118,159.28

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Solution

The fourth proportional to 21,285,516.54, 29,374,041.22 and 12,118,159.28 is: 16,723,075.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285,516.54 : 29,374,041.22 = 12,118,159.28 : x
  2. Step 2: Convert to fraction form
    21,285,516.54/29,374,041.22 = 12,118,159.28/x
  3. Step 3: Cross multiply
    21,285,516.54x = 29,374,041.22 × 12,118,159.28
  4. Step 4: Simplify right side
    21,285,516.54x = 355,959,310,201,245.50
  5. Step 5: Solve for x
    x = 355,959,310,201,245.50/21,285,516.54
  6. Step 6: Final answer
    x = 16,723,075.97

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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.