Home / 860,269,434,080.80-1,290,404,151,121.20-742,626,442,055.20

Finding the Fourth Proportional to 860,269,434,080.80, 1,290,404,151,121.20 and 742,626,442,055.20

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Solution

The fourth proportional to 860,269,434,080.80, 1,290,404,151,121.20 and 742,626,442,055.20 is: 1,113,939,663,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,269,434,080.80 : 1,290,404,151,121.20 = 742,626,442,055.20 : x
  2. Step 2: Convert to fraction form
    860,269,434,080.80/1,290,404,151,121.20 = 742,626,442,055.20/x
  3. Step 3: Cross multiply
    860,269,434,080.80x = 1,290,404,151,121.20 × 742,626,442,055.20
  4. Step 4: Simplify right side
    860,269,434,080.80x = 958,288,243,560,397,339,099,136
  5. Step 5: Solve for x
    x = 958,288,243,560,397,339,099,136/860,269,434,080.80
  6. Step 6: Final answer
    x = 1,113,939,663,082.80

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Double scale
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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.