Home / 34,138,980.30-47,115,443.79-20,916,931.92

Finding the Fourth Proportional to 34,138,980.30, 47,115,443.79 and 20,916,931.92

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Solution

The fourth proportional to 34,138,980.30, 47,115,443.79 and 20,916,931.92 is: 28,867,602.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,138,980.30 : 47,115,443.79 = 20,916,931.92 : x
  2. Step 2: Convert to fraction form
    34,138,980.30/47,115,443.79 = 20,916,931.92/x
  3. Step 3: Cross multiply
    34,138,980.30x = 47,115,443.79 × 20,916,931.92
  4. Step 4: Simplify right side
    34,138,980.30x = 985,510,529,848,147.25
  5. Step 5: Solve for x
    x = 985,510,529,848,147.25/34,138,980.30
  6. Step 6: Final answer
    x = 28,867,602.99

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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.