Home / 669,137,729.60-1,003,316,871-259,715,583.20

Finding the Fourth Proportional to 669,137,729.60, 1,003,316,871 and 259,715,583.20

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Solution

The fourth proportional to 669,137,729.60, 1,003,316,871 and 259,715,583.20 is: 389,422,109.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,137,729.60 : 1,003,316,871 = 259,715,583.20 : x
  2. Step 2: Convert to fraction form
    669,137,729.60/1,003,316,871 = 259,715,583.20/x
  3. Step 3: Cross multiply
    669,137,729.60x = 1,003,316,871 × 259,715,583.20
  4. Step 4: Simplify right side
    669,137,729.60x = 260,577,026,286,164,160
  5. Step 5: Solve for x
    x = 260,577,026,286,164,160/669,137,729.60
  6. Step 6: Final answer
    x = 389,422,109.62

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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.