Home / 1,379,118,745.60-2,068,678,118.40-862,132,940.80

Finding the Fourth Proportional to 1,379,118,745.60, 2,068,678,118.40 and 862,132,940.80

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Solution

The fourth proportional to 1,379,118,745.60, 2,068,678,118.40 and 862,132,940.80 is: 1,293,199,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,118,745.60 : 2,068,678,118.40 = 862,132,940.80 : x
  2. Step 2: Convert to fraction form
    1,379,118,745.60/2,068,678,118.40 = 862,132,940.80/x
  3. Step 3: Cross multiply
    1,379,118,745.60x = 2,068,678,118.40 × 862,132,940.80
  4. Step 4: Simplify right side
    1,379,118,745.60x = 1,783,475,549,784,802,560
  5. Step 5: Solve for x
    x = 1,783,475,549,784,802,560/1,379,118,745.60
  6. Step 6: Final answer
    x = 1,293,199,411.20

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Double scale
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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.