Home / 21,851,803.92-30,156,203.16-11,929,215.72

Finding the Fourth Proportional to 21,851,803.92, 30,156,203.16 and 11,929,215.72

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Solution

The fourth proportional to 21,851,803.92, 30,156,203.16 and 11,929,215.72 is: 16,462,707.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851,803.92 : 30,156,203.16 = 11,929,215.72 : x
  2. Step 2: Convert to fraction form
    21,851,803.92/30,156,203.16 = 11,929,215.72/x
  3. Step 3: Cross multiply
    21,851,803.92x = 30,156,203.16 × 11,929,215.72
  4. Step 4: Simplify right side
    21,851,803.92x = 359,739,852,791,785.69
  5. Step 5: Solve for x
    x = 359,739,852,791,785.69/21,851,803.92
  6. Step 6: Final answer
    x = 16,462,707.34

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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.