Home / 147,410,515-203,425,938.30-81,335,125.72

Finding the Fourth Proportional to 147,410,515, 203,425,938.30 and 81,335,125.72

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Solution

The fourth proportional to 147,410,515, 203,425,938.30 and 81,335,125.72 is: 112,242,157.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,410,515 : 203,425,938.30 = 81,335,125.72 : x
  2. Step 2: Convert to fraction form
    147,410,515/203,425,938.30 = 81,335,125.72/x
  3. Step 3: Cross multiply
    147,410,515x = 203,425,938.30 × 81,335,125.72
  4. Step 4: Simplify right side
    147,410,515x = 16,545,674,266,339,464
  5. Step 5: Solve for x
    x = 16,545,674,266,339,464/147,410,515
  6. Step 6: Final answer
    x = 112,242,157.67

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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.