Home / 1,318,032,199.20-1,977,048,298.80-348,683,815.20

Finding the Fourth Proportional to 1,318,032,199.20, 1,977,048,298.80 and 348,683,815.20

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Solution

The fourth proportional to 1,318,032,199.20, 1,977,048,298.80 and 348,683,815.20 is: 523,025,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,032,199.20 : 1,977,048,298.80 = 348,683,815.20 : x
  2. Step 2: Convert to fraction form
    1,318,032,199.20/1,977,048,298.80 = 348,683,815.20/x
  3. Step 3: Cross multiply
    1,318,032,199.20x = 1,977,048,298.80 × 348,683,815.20
  4. Step 4: Simplify right side
    1,318,032,199.20x = 689,364,743,660,253,568
  5. Step 5: Solve for x
    x = 689,364,743,660,253,568/1,318,032,199.20
  6. Step 6: Final answer
    x = 523,025,722.80

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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.