Home / 417,467,023.20-626,200,534.80-393,658,466.40

Finding the Fourth Proportional to 417,467,023.20, 626,200,534.80 and 393,658,466.40

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Solution

The fourth proportional to 417,467,023.20, 626,200,534.80 and 393,658,466.40 is: 590,487,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,467,023.20 : 626,200,534.80 = 393,658,466.40 : x
  2. Step 2: Convert to fraction form
    417,467,023.20/626,200,534.80 = 393,658,466.40/x
  3. Step 3: Cross multiply
    417,467,023.20x = 626,200,534.80 × 393,658,466.40
  4. Step 4: Simplify right side
    417,467,023.20x = 246,509,142,188,227,808
  5. Step 5: Solve for x
    x = 246,509,142,188,227,808/417,467,023.20
  6. Step 6: Final answer
    x = 590,487,699.60

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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.