Home / 13,620,968.64-18,786,307.95-8,726,649.30

Finding the Fourth Proportional to 13,620,968.64, 18,786,307.95 and 8,726,649.30

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Solution

The fourth proportional to 13,620,968.64, 18,786,307.95 and 8,726,649.30 is: 12,035,966.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620,968.64 : 18,786,307.95 = 8,726,649.30 : x
  2. Step 2: Convert to fraction form
    13,620,968.64/18,786,307.95 = 8,726,649.30/x
  3. Step 3: Cross multiply
    13,620,968.64x = 18,786,307.95 × 8,726,649.30
  4. Step 4: Simplify right side
    13,620,968.64x = 163,941,521,121,451.94
  5. Step 5: Solve for x
    x = 163,941,521,121,451.94/13,620,968.64
  6. Step 6: Final answer
    x = 12,035,966.42

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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.