Home / 13,533,258.54-18,676,886.60-7,731,915.72

Finding the Fourth Proportional to 13,533,258.54, 18,676,886.60 and 7,731,915.72

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Solution

The fourth proportional to 13,533,258.54, 18,676,886.60 and 7,731,915.72 is: 10,670,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533,258.54 : 18,676,886.60 = 7,731,915.72 : x
  2. Step 2: Convert to fraction form
    13,533,258.54/18,676,886.60 = 7,731,915.72/x
  3. Step 3: Cross multiply
    13,533,258.54x = 18,676,886.60 × 7,731,915.72
  4. Step 4: Simplify right side
    13,533,258.54x = 144,408,113,064,537.75
  5. Step 5: Solve for x
    x = 144,408,113,064,537.75/13,533,258.54
  6. Step 6: Final answer
    x = 10,670,609.20

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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.