Home / 1,778,118,420.80-2,667,177,631.20-1,678,349,230.40

Finding the Fourth Proportional to 1,778,118,420.80, 2,667,177,631.20 and 1,678,349,230.40

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Solution

The fourth proportional to 1,778,118,420.80, 2,667,177,631.20 and 1,678,349,230.40 is: 2,517,523,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,118,420.80 : 2,667,177,631.20 = 1,678,349,230.40 : x
  2. Step 2: Convert to fraction form
    1,778,118,420.80/2,667,177,631.20 = 1,678,349,230.40/x
  3. Step 3: Cross multiply
    1,778,118,420.80x = 2,667,177,631.20 × 1,678,349,230.40
  4. Step 4: Simplify right side
    1,778,118,420.80x = 4,476,455,524,664,614,912
  5. Step 5: Solve for x
    x = 4,476,455,524,664,614,912/1,778,118,420.80
  6. Step 6: Final answer
    x = 2,517,523,845.60

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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.