Home / 28,139,840,328.39-42,211,118,033.42-9,252,709,848.42

Finding the Fourth Proportional to 28,139,840,328.39, 42,211,118,033.42 and 9,252,709,848.42

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Solution

The fourth proportional to 28,139,840,328.39, 42,211,118,033.42 and 9,252,709,848.42 is: 13,879,511,147.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139,840,328.39 : 42,211,118,033.42 = 9,252,709,848.42 : x
  2. Step 2: Convert to fraction form
    28,139,840,328.39/42,211,118,033.42 = 9,252,709,848.42/x
  3. Step 3: Cross multiply
    28,139,840,328.39x = 42,211,118,033.42 × 9,252,709,848.42
  4. Step 4: Simplify right side
    28,139,840,328.39x = 390,567,227,540,644,298,752
  5. Step 5: Solve for x
    x = 390,567,227,540,644,298,752/28,139,840,328.39
  6. Step 6: Final answer
    x = 13,879,511,147.99

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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.