Home / 28,083,931,668.91-38,755,816,376.34-15,396,394,929.67

Finding the Fourth Proportional to 28,083,931,668.91, 38,755,816,376.34 and 15,396,394,929.67

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Solution

The fourth proportional to 28,083,931,668.91, 38,755,816,376.34 and 15,396,394,929.67 is: 21,247,019,889.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,931,668.91 : 38,755,816,376.34 = 15,396,394,929.67 : x
  2. Step 2: Convert to fraction form
    28,083,931,668.91/38,755,816,376.34 = 15,396,394,929.67/x
  3. Step 3: Cross multiply
    28,083,931,668.91x = 38,755,816,376.34 × 15,396,394,929.67
  4. Step 4: Simplify right side
    28,083,931,668.91x = 596,699,854,751,902,728,192
  5. Step 5: Solve for x
    x = 596,699,854,751,902,728,192/28,083,931,668.91
  6. Step 6: Final answer
    x = 21,247,019,889.76

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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.