Home / 1,292,693,183.50-1,939,312,139-419,226,443.86

Finding the Fourth Proportional to 1,292,693,183.50, 1,939,312,139 and 419,226,443.86

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Solution

The fourth proportional to 1,292,693,183.50, 1,939,312,139 and 419,226,443.86 is: 628,927,994.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,693,183.50 : 1,939,312,139 = 419,226,443.86 : x
  2. Step 2: Convert to fraction form
    1,292,693,183.50/1,939,312,139 = 419,226,443.86/x
  3. Step 3: Cross multiply
    1,292,693,183.50x = 1,939,312,139 × 419,226,443.86
  4. Step 4: Simplify right side
    1,292,693,183.50x = 813,010,931,567,500,032
  5. Step 5: Solve for x
    x = 813,010,931,567,500,032/1,292,693,183.50
  6. Step 6: Final answer
    x = 628,927,994.63

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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.