Home / 86,592,819.85-129,888,145.96-21,014,500.77

Finding the Fourth Proportional to 86,592,819.85, 129,888,145.96 and 21,014,500.77

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Solution

The fourth proportional to 86,592,819.85, 129,888,145.96 and 21,014,500.77 is: 31,521,488.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,592,819.85 : 129,888,145.96 = 21,014,500.77 : x
  2. Step 2: Convert to fraction form
    86,592,819.85/129,888,145.96 = 21,014,500.77/x
  3. Step 3: Cross multiply
    86,592,819.85x = 129,888,145.96 × 21,014,500.77
  4. Step 4: Simplify right side
    86,592,819.85x = 2,729,534,542,913,035.50
  5. Step 5: Solve for x
    x = 2,729,534,542,913,035.50/86,592,819.85
  6. Step 6: Final answer
    x = 31,521,488.13

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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.