Home / 139,701,588-209,695,379.44-115,362,967.20

Finding the Fourth Proportional to 139,701,588, 209,695,379.44 and 115,362,967.20

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Solution

The fourth proportional to 139,701,588, 209,695,379.44 and 115,362,967.20 is: 173,162,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,701,588 : 209,695,379.44 = 115,362,967.20 : x
  2. Step 2: Convert to fraction form
    139,701,588/209,695,379.44 = 115,362,967.20/x
  3. Step 3: Cross multiply
    139,701,588x = 209,695,379.44 × 115,362,967.20
  4. Step 4: Simplify right side
    139,701,588x = 24,191,081,180,328,276
  5. Step 5: Solve for x
    x = 24,191,081,180,328,276/139,701,588
  6. Step 6: Final answer
    x = 173,162,535.42

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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.