Home / 672,211,539.10-1,008,317,308.65-611,946,129.70

Finding the Fourth Proportional to 672,211,539.10, 1,008,317,308.65 and 611,946,129.70

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Solution

The fourth proportional to 672,211,539.10, 1,008,317,308.65 and 611,946,129.70 is: 917,919,194.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,211,539.10 : 1,008,317,308.65 = 611,946,129.70 : x
  2. Step 2: Convert to fraction form
    672,211,539.10/1,008,317,308.65 = 611,946,129.70/x
  3. Step 3: Cross multiply
    672,211,539.10x = 1,008,317,308.65 × 611,946,129.70
  4. Step 4: Simplify right side
    672,211,539.10x = 617,035,874,537,887,872
  5. Step 5: Solve for x
    x = 617,035,874,537,887,872/672,211,539.10
  6. Step 6: Final answer
    x = 917,919,194.55

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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.