Home / 13,206,416.40-19,789,421.82-7,059,272.49

Finding the Fourth Proportional to 13,206,416.40, 19,789,421.82 and 7,059,272.49

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Solution

The fourth proportional to 13,206,416.40, 19,789,421.82 and 7,059,272.49 is: 10,578,109.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206,416.40 : 19,789,421.82 = 7,059,272.49 : x
  2. Step 2: Convert to fraction form
    13,206,416.40/19,789,421.82 = 7,059,272.49/x
  3. Step 3: Cross multiply
    13,206,416.40x = 19,789,421.82 × 7,059,272.49
  4. Step 4: Simplify right side
    13,206,416.40x = 139,698,921,024,360.80
  5. Step 5: Solve for x
    x = 139,698,921,024,360.80/13,206,416.40
  6. Step 6: Final answer
    x = 10,578,109.67

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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.