Home / 488,359,879.20-732,539,818.80-422,602,912.80

Finding the Fourth Proportional to 488,359,879.20, 732,539,818.80 and 422,602,912.80

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Solution

The fourth proportional to 488,359,879.20, 732,539,818.80 and 422,602,912.80 is: 633,904,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,359,879.20 : 732,539,818.80 = 422,602,912.80 : x
  2. Step 2: Convert to fraction form
    488,359,879.20/732,539,818.80 = 422,602,912.80/x
  3. Step 3: Cross multiply
    488,359,879.20x = 732,539,818.80 × 422,602,912.80
  4. Step 4: Simplify right side
    488,359,879.20x = 309,573,461,166,864,192
  5. Step 5: Solve for x
    x = 309,573,461,166,864,192/488,359,879.20
  6. Step 6: Final answer
    x = 633,904,369.20

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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.