Home / 21,851,784.86-30,156,176.81-11,929,196.63

Finding the Fourth Proportional to 21,851,784.86, 30,156,176.81 and 11,929,196.63

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Solution

The fourth proportional to 21,851,784.86, 30,156,176.81 and 11,929,196.63 is: 16,462,680.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851,784.86 : 30,156,176.81 = 11,929,196.63 : x
  2. Step 2: Convert to fraction form
    21,851,784.86/30,156,176.81 = 11,929,196.63/x
  3. Step 3: Cross multiply
    21,851,784.86x = 30,156,176.81 × 11,929,196.63
  4. Step 4: Simplify right side
    21,851,784.86x = 359,738,962,880,749.56
  5. Step 5: Solve for x
    x = 359,738,962,880,749.56/21,851,784.86
  6. Step 6: Final answer
    x = 16,462,680.98

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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.