Home / 13,130,927.76-18,122,217.84-10,921,893.60

Finding the Fourth Proportional to 13,130,927.76, 18,122,217.84 and 10,921,893.60

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Solution

The fourth proportional to 13,130,927.76, 18,122,217.84 and 10,921,893.60 is: 15,073,492.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130,927.76 : 18,122,217.84 = 10,921,893.60 : x
  2. Step 2: Convert to fraction form
    13,130,927.76/18,122,217.84 = 10,921,893.60/x
  3. Step 3: Cross multiply
    13,130,927.76x = 18,122,217.84 × 10,921,893.60
  4. Step 4: Simplify right side
    13,130,927.76x = 197,928,935,044,501.81
  5. Step 5: Solve for x
    x = 197,928,935,044,501.81/13,130,927.76
  6. Step 6: Final answer
    x = 15,073,492.04

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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.