Home / 1,110,280,359.60-1,664,226,145.80-419,920,858.80

Finding the Fourth Proportional to 1,110,280,359.60, 1,664,226,145.80 and 419,920,858.80

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Solution

The fourth proportional to 1,110,280,359.60, 1,664,226,145.80 and 419,920,858.80 is: 629,429,554.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,280,359.60 : 1,664,226,145.80 = 419,920,858.80 : x
  2. Step 2: Convert to fraction form
    1,110,280,359.60/1,664,226,145.80 = 419,920,858.80/x
  3. Step 3: Cross multiply
    1,110,280,359.60x = 1,664,226,145.80 × 419,920,858.80
  4. Step 4: Simplify right side
    1,110,280,359.60x = 698,843,272,381,750,016
  5. Step 5: Solve for x
    x = 698,843,272,381,750,016/1,110,280,359.60
  6. Step 6: Final answer
    x = 629,429,554.74

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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.