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Finding the Fourth Proportional to 1,020,396,644.70, 1,431,276,280.50 and 1,020,396,644.70

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Solution

The fourth proportional to 1,020,396,644.70, 1,431,276,280.50 and 1,020,396,644.70 is: 1,431,276,280.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,396,644.70 : 1,431,276,280.50 = 1,020,396,644.70 : x
  2. Step 2: Convert to fraction form
    1,020,396,644.70/1,431,276,280.50 = 1,020,396,644.70/x
  3. Step 3: Cross multiply
    1,020,396,644.70x = 1,431,276,280.50 × 1,020,396,644.70
  4. Step 4: Simplify right side
    1,020,396,644.70x = 1,460,469,514,260,896,000
  5. Step 5: Solve for x
    x = 1,460,469,514,260,896,000/1,020,396,644.70
  6. Step 6: Final answer
    x = 1,431,276,280.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.