Home / 278,311,525.80-417,467,288.70-262,439,154.60

Finding the Fourth Proportional to 278,311,525.80, 417,467,288.70 and 262,439,154.60

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Solution

The fourth proportional to 278,311,525.80, 417,467,288.70 and 262,439,154.60 is: 393,658,731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,311,525.80 : 417,467,288.70 = 262,439,154.60 : x
  2. Step 2: Convert to fraction form
    278,311,525.80/417,467,288.70 = 262,439,154.60/x
  3. Step 3: Cross multiply
    278,311,525.80x = 417,467,288.70 × 262,439,154.60
  4. Step 4: Simplify right side
    278,311,525.80x = 109,559,762,319,582,128
  5. Step 5: Solve for x
    x = 109,559,762,319,582,128/278,311,525.80
  6. Step 6: Final answer
    x = 393,658,731.90

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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.