Home / 786,806,816.50-1,180,194,020.90-262,214,007.87

Finding the Fourth Proportional to 786,806,816.50, 1,180,194,020.90 and 262,214,007.87

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Solution

The fourth proportional to 786,806,816.50, 1,180,194,020.90 and 262,214,007.87 is: 393,315,611.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,806,816.50 : 1,180,194,020.90 = 262,214,007.87 : x
  2. Step 2: Convert to fraction form
    786,806,816.50/1,180,194,020.90 = 262,214,007.87/x
  3. Step 3: Cross multiply
    786,806,816.50x = 1,180,194,020.90 × 262,214,007.87
  4. Step 4: Simplify right side
    786,806,816.50x = 309,463,404,283,088,448
  5. Step 5: Solve for x
    x = 309,463,404,283,088,448/786,806,816.50
  6. Step 6: Final answer
    x = 393,315,611.65

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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.