Home / 13,118,088.60-18,065,730.78-11,269,111.32

Finding the Fourth Proportional to 13,118,088.60, 18,065,730.78 and 11,269,111.32

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Solution

The fourth proportional to 13,118,088.60, 18,065,730.78 and 11,269,111.32 is: 15,519,389.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118,088.60 : 18,065,730.78 = 11,269,111.32 : x
  2. Step 2: Convert to fraction form
    13,118,088.60/18,065,730.78 = 11,269,111.32/x
  3. Step 3: Cross multiply
    13,118,088.60x = 18,065,730.78 × 11,269,111.32
  4. Step 4: Simplify right side
    13,118,088.60x = 203,584,731,236,970.44
  5. Step 5: Solve for x
    x = 203,584,731,236,970.44/13,118,088.60
  6. Step 6: Final answer
    x = 15,519,389.86

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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.