Home / 18,964,409.81-26,168,070.29-11,518,196.96

Finding the Fourth Proportional to 18,964,409.81, 26,168,070.29 and 11,518,196.96

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Solution

The fourth proportional to 18,964,409.81, 26,168,070.29 and 11,518,196.96 is: 15,893,401.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964,409.81 : 26,168,070.29 = 11,518,196.96 : x
  2. Step 2: Convert to fraction form
    18,964,409.81/26,168,070.29 = 11,518,196.96/x
  3. Step 3: Cross multiply
    18,964,409.81x = 26,168,070.29 × 11,518,196.96
  4. Step 4: Simplify right side
    18,964,409.81x = 301,408,987,671,173.50
  5. Step 5: Solve for x
    x = 301,408,987,671,173.50/18,964,409.81
  6. Step 6: Final answer
    x = 15,893,401.94

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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.