Home / 72,008,553.99-108,013,111.21-17,421,051.92

Finding the Fourth Proportional to 72,008,553.99, 108,013,111.21 and 17,421,051.92

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Solution

The fourth proportional to 72,008,553.99, 108,013,111.21 and 17,421,051.92 is: 26,131,645.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,008,553.99 : 108,013,111.21 = 17,421,051.92 : x
  2. Step 2: Convert to fraction form
    72,008,553.99/108,013,111.21 = 17,421,051.92/x
  3. Step 3: Cross multiply
    72,008,553.99x = 108,013,111.21 × 17,421,051.92
  4. Step 4: Simplify right side
    72,008,553.99x = 1,881,702,018,430,144
  5. Step 5: Solve for x
    x = 1,881,702,018,430,144/72,008,553.99
  6. Step 6: Final answer
    x = 26,131,645.67

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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.