Home / 456,728,149.89-630,285,455.04-247,884,292.53

Finding the Fourth Proportional to 456,728,149.89, 630,285,455.04 and 247,884,292.53

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Solution

The fourth proportional to 456,728,149.89, 630,285,455.04 and 247,884,292.53 is: 342,080,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,728,149.89 : 630,285,455.04 = 247,884,292.53 : x
  2. Step 2: Convert to fraction form
    456,728,149.89/630,285,455.04 = 247,884,292.53/x
  3. Step 3: Cross multiply
    456,728,149.89x = 630,285,455.04 × 247,884,292.53
  4. Step 4: Simplify right side
    456,728,149.89x = 156,237,864,114,539,520
  5. Step 5: Solve for x
    x = 156,237,864,114,539,520/456,728,149.89
  6. Step 6: Final answer
    x = 342,080,653.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.