Home / 863,592,604.80-1,295,388,907.20-426,960,679.20

Finding the Fourth Proportional to 863,592,604.80, 1,295,388,907.20 and 426,960,679.20

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Solution

The fourth proportional to 863,592,604.80, 1,295,388,907.20 and 426,960,679.20 is: 640,441,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,592,604.80 : 1,295,388,907.20 = 426,960,679.20 : x
  2. Step 2: Convert to fraction form
    863,592,604.80/1,295,388,907.20 = 426,960,679.20/x
  3. Step 3: Cross multiply
    863,592,604.80x = 1,295,388,907.20 × 426,960,679.20
  4. Step 4: Simplify right side
    863,592,604.80x = 553,080,127,646,257,792
  5. Step 5: Solve for x
    x = 553,080,127,646,257,792/863,592,604.80
  6. Step 6: Final answer
    x = 640,441,018.80

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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.