Home / 672,211,518.60-1,008,317,277.90-611,946,109.20

Finding the Fourth Proportional to 672,211,518.60, 1,008,317,277.90 and 611,946,109.20

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Solution

The fourth proportional to 672,211,518.60, 1,008,317,277.90 and 611,946,109.20 is: 917,919,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,211,518.60 : 1,008,317,277.90 = 611,946,109.20 : x
  2. Step 2: Convert to fraction form
    672,211,518.60/1,008,317,277.90 = 611,946,109.20/x
  3. Step 3: Cross multiply
    672,211,518.60x = 1,008,317,277.90 × 611,946,109.20
  4. Step 4: Simplify right side
    672,211,518.60x = 617,035,835,050,040,192
  5. Step 5: Solve for x
    x = 617,035,835,050,040,192/672,211,518.60
  6. Step 6: Final answer
    x = 917,919,163.80

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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.