Home / 28,139,840,326.80-42,211,118,031.03-9,252,709,846.83

Finding the Fourth Proportional to 28,139,840,326.80, 42,211,118,031.03 and 9,252,709,846.83

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Solution

The fourth proportional to 28,139,840,326.80, 42,211,118,031.03 and 9,252,709,846.83 is: 13,879,511,145.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139,840,326.80 : 42,211,118,031.03 = 9,252,709,846.83 : x
  2. Step 2: Convert to fraction form
    28,139,840,326.80/42,211,118,031.03 = 9,252,709,846.83/x
  3. Step 3: Cross multiply
    28,139,840,326.80x = 42,211,118,031.03 × 9,252,709,846.83
  4. Step 4: Simplify right side
    28,139,840,326.80x = 390,567,227,451,414,609,920
  5. Step 5: Solve for x
    x = 390,567,227,451,414,609,920/28,139,840,326.80
  6. Step 6: Final answer
    x = 13,879,511,145.61

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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.