Home / 1,379,094,145.20-2,068,641,217.80-917,535,668.40

Finding the Fourth Proportional to 1,379,094,145.20, 2,068,641,217.80 and 917,535,668.40

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Solution

The fourth proportional to 1,379,094,145.20, 2,068,641,217.80 and 917,535,668.40 is: 1,376,303,502.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,094,145.20 : 2,068,641,217.80 = 917,535,668.40 : x
  2. Step 2: Convert to fraction form
    1,379,094,145.20/2,068,641,217.80 = 917,535,668.40/x
  3. Step 3: Cross multiply
    1,379,094,145.20x = 2,068,641,217.80 × 917,535,668.40
  4. Step 4: Simplify right side
    1,379,094,145.20x = 1,898,052,102,453,912,832
  5. Step 5: Solve for x
    x = 1,898,052,102,453,912,832/1,379,094,145.20
  6. Step 6: Final answer
    x = 1,376,303,502.60

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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.