Home / 672,211,519.60-1,008,317,279.40-611,946,110.20

Finding the Fourth Proportional to 672,211,519.60, 1,008,317,279.40 and 611,946,110.20

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Solution

The fourth proportional to 672,211,519.60, 1,008,317,279.40 and 611,946,110.20 is: 917,919,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,211,519.60 : 1,008,317,279.40 = 611,946,110.20 : x
  2. Step 2: Convert to fraction form
    672,211,519.60/1,008,317,279.40 = 611,946,110.20/x
  3. Step 3: Cross multiply
    672,211,519.60x = 1,008,317,279.40 × 611,946,110.20
  4. Step 4: Simplify right side
    672,211,519.60x = 617,035,836,976,276,608
  5. Step 5: Solve for x
    x = 617,035,836,976,276,608/672,211,519.60
  6. Step 6: Final answer
    x = 917,919,165.30

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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.