Home / 28,166,623.90-42,244,941.59-12,810,316.66

Finding the Fourth Proportional to 28,166,623.90, 42,244,941.59 and 12,810,316.66

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Solution

The fourth proportional to 28,166,623.90, 42,244,941.59 and 12,810,316.66 is: 19,213,203.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166,623.90 : 42,244,941.59 = 12,810,316.66 : x
  2. Step 2: Convert to fraction form
    28,166,623.90/42,244,941.59 = 12,810,316.66/x
  3. Step 3: Cross multiply
    28,166,623.90x = 42,244,941.59 × 12,810,316.66
  4. Step 4: Simplify right side
    28,166,623.90x = 541,171,078,929,478.62
  5. Step 5: Solve for x
    x = 541,171,078,929,478.62/28,166,623.90
  6. Step 6: Final answer
    x = 19,213,203.57

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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.