Home / 8,536,973,136.40-12,805,459,704.60-7,085,784,912.40

Finding the Fourth Proportional to 8,536,973,136.40, 12,805,459,704.60 and 7,085,784,912.40

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Solution

The fourth proportional to 8,536,973,136.40, 12,805,459,704.60 and 7,085,784,912.40 is: 10,628,677,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,536,973,136.40 : 12,805,459,704.60 = 7,085,784,912.40 : x
  2. Step 2: Convert to fraction form
    8,536,973,136.40/12,805,459,704.60 = 7,085,784,912.40/x
  3. Step 3: Cross multiply
    8,536,973,136.40x = 12,805,459,704.60 × 7,085,784,912.40
  4. Step 4: Simplify right side
    8,536,973,136.40x = 90,736,733,171,200,835,584
  5. Step 5: Solve for x
    x = 90,736,733,171,200,835,584/8,536,973,136.40
  6. Step 6: Final answer
    x = 10,628,677,368.60

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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.