Home / 953,856,075.20-1,430,784,112.80-307,689,137.60

Finding the Fourth Proportional to 953,856,075.20, 1,430,784,112.80 and 307,689,137.60

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Solution

The fourth proportional to 953,856,075.20, 1,430,784,112.80 and 307,689,137.60 is: 461,533,706.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,856,075.20 : 1,430,784,112.80 = 307,689,137.60 : x
  2. Step 2: Convert to fraction form
    953,856,075.20/1,430,784,112.80 = 307,689,137.60/x
  3. Step 3: Cross multiply
    953,856,075.20x = 1,430,784,112.80 × 307,689,137.60
  4. Step 4: Simplify right side
    953,856,075.20x = 440,236,729,759,213,120
  5. Step 5: Solve for x
    x = 440,236,729,759,213,120/953,856,075.20
  6. Step 6: Final answer
    x = 461,533,706.40

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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.