Home / 140,978,271.52-211,467,116.51-79,539,539.96

Finding the Fourth Proportional to 140,978,271.52, 211,467,116.51 and 79,539,539.96

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Solution

The fourth proportional to 140,978,271.52, 211,467,116.51 and 79,539,539.96 is: 119,309,145.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,978,271.52 : 211,467,116.51 = 79,539,539.96 : x
  2. Step 2: Convert to fraction form
    140,978,271.52/211,467,116.51 = 79,539,539.96/x
  3. Step 3: Cross multiply
    140,978,271.52x = 211,467,116.51 × 79,539,539.96
  4. Step 4: Simplify right side
    140,978,271.52x = 16,819,997,163,873,118
  5. Step 5: Solve for x
    x = 16,819,997,163,873,118/140,978,271.52
  6. Step 6: Final answer
    x = 119,309,145.89

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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.