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Finding the Fourth Proportional to 1,105,990,269.80, 1,658,985,404.70 and 928,622,820.20

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Solution

The fourth proportional to 1,105,990,269.80, 1,658,985,404.70 and 928,622,820.20 is: 1,392,934,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,990,269.80 : 1,658,985,404.70 = 928,622,820.20 : x
  2. Step 2: Convert to fraction form
    1,105,990,269.80/1,658,985,404.70 = 928,622,820.20/x
  3. Step 3: Cross multiply
    1,105,990,269.80x = 1,658,985,404.70 × 928,622,820.20
  4. Step 4: Simplify right side
    1,105,990,269.80x = 1,540,571,705,183,152,384
  5. Step 5: Solve for x
    x = 1,540,571,705,183,152,384/1,105,990,269.80
  6. Step 6: Final answer
    x = 1,392,934,230.30

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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.