Home / 28,143,146.26-38,838,199.44-15,752,931.58

Finding the Fourth Proportional to 28,143,146.26, 38,838,199.44 and 15,752,931.58

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Solution

The fourth proportional to 28,143,146.26, 38,838,199.44 and 15,752,931.58 is: 21,739,413.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,143,146.26 : 38,838,199.44 = 15,752,931.58 : x
  2. Step 2: Convert to fraction form
    28,143,146.26/38,838,199.44 = 15,752,931.58/x
  3. Step 3: Cross multiply
    28,143,146.26x = 38,838,199.44 × 15,752,931.58
  4. Step 4: Simplify right side
    28,143,146.26x = 611,815,498,468,714.25
  5. Step 5: Solve for x
    x = 611,815,498,468,714.25/28,143,146.26
  6. Step 6: Final answer
    x = 21,739,413.67

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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.