Home / 42,808,819.92-64,213,354.44-18,210,408.96

Finding the Fourth Proportional to 42,808,819.92, 64,213,354.44 and 18,210,408.96

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Solution

The fourth proportional to 42,808,819.92, 64,213,354.44 and 18,210,408.96 is: 27,315,666.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,808,819.92 : 64,213,354.44 = 18,210,408.96 : x
  2. Step 2: Convert to fraction form
    42,808,819.92/64,213,354.44 = 18,210,408.96/x
  3. Step 3: Cross multiply
    42,808,819.92x = 64,213,354.44 × 18,210,408.96
  4. Step 4: Simplify right side
    42,808,819.92x = 1,169,351,445,045,831.75
  5. Step 5: Solve for x
    x = 1,169,351,445,045,831.75/42,808,819.92
  6. Step 6: Final answer
    x = 27,315,666.43

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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.