Home / 688,764,548.40-1,033,146,822.60-280,113,975.60

Finding the Fourth Proportional to 688,764,548.40, 1,033,146,822.60 and 280,113,975.60

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Solution

The fourth proportional to 688,764,548.40, 1,033,146,822.60 and 280,113,975.60 is: 420,170,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,764,548.40 : 1,033,146,822.60 = 280,113,975.60 : x
  2. Step 2: Convert to fraction form
    688,764,548.40/1,033,146,822.60 = 280,113,975.60/x
  3. Step 3: Cross multiply
    688,764,548.40x = 1,033,146,822.60 × 280,113,975.60
  4. Step 4: Simplify right side
    688,764,548.40x = 289,398,863,856,993,984
  5. Step 5: Solve for x
    x = 289,398,863,856,993,984/688,764,548.40
  6. Step 6: Final answer
    x = 420,170,963.40

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Double scale
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Similar ratio
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1.5x scale

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.