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Finding the Fourth Proportional to 1,984,887,211.60, 2,977,330,817.40 and 1,984,887,211.60

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Solution

The fourth proportional to 1,984,887,211.60, 2,977,330,817.40 and 1,984,887,211.60 is: 2,977,330,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984,887,211.60 : 2,977,330,817.40 = 1,984,887,211.60 : x
  2. Step 2: Convert to fraction form
    1,984,887,211.60/2,977,330,817.40 = 1,984,887,211.60/x
  3. Step 3: Cross multiply
    1,984,887,211.60x = 2,977,330,817.40 × 1,984,887,211.60
  4. Step 4: Simplify right side
    1,984,887,211.60x = 5,909,665,864,159,835,136
  5. Step 5: Solve for x
    x = 5,909,665,864,159,835,136/1,984,887,211.60
  6. Step 6: Final answer
    x = 2,977,330,817.40

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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.