Home / 1,379,119,231.60-2,068,678,847.40-862,133,426.80

Finding the Fourth Proportional to 1,379,119,231.60, 2,068,678,847.40 and 862,133,426.80

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Solution

The fourth proportional to 1,379,119,231.60, 2,068,678,847.40 and 862,133,426.80 is: 1,293,200,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,119,231.60 : 2,068,678,847.40 = 862,133,426.80 : x
  2. Step 2: Convert to fraction form
    1,379,119,231.60/2,068,678,847.40 = 862,133,426.80/x
  3. Step 3: Cross multiply
    1,379,119,231.60x = 2,068,678,847.40 × 862,133,426.80
  4. Step 4: Simplify right side
    1,379,119,231.60x = 1,783,477,183,657,636,352
  5. Step 5: Solve for x
    x = 1,783,477,183,657,636,352/1,379,119,231.60
  6. Step 6: Final answer
    x = 1,293,200,140.20

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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.