Home / 13,390,180.21-20,068,459.57-7,241,916.79

Finding the Fourth Proportional to 13,390,180.21, 20,068,459.57 and 7,241,916.79

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Solution

The fourth proportional to 13,390,180.21, 20,068,459.57 and 7,241,916.79 is: 10,853,783.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,180.21 : 20,068,459.57 = 7,241,916.79 : x
  2. Step 2: Convert to fraction form
    13,390,180.21/20,068,459.57 = 7,241,916.79/x
  3. Step 3: Cross multiply
    13,390,180.21x = 20,068,459.57 × 7,241,916.79
  4. Step 4: Simplify right side
    13,390,180.21x = 145,334,114,309,419.19
  5. Step 5: Solve for x
    x = 145,334,114,309,419.19/13,390,180.21
  6. Step 6: Final answer
    x = 10,853,783.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.