Home / 825,890,502.57-1,139,758,968.81-449,528,913.73

Finding the Fourth Proportional to 825,890,502.57, 1,139,758,968.81 and 449,528,913.73

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Solution

The fourth proportional to 825,890,502.57, 1,139,758,968.81 and 449,528,913.73 is: 620,366,270.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,890,502.57 : 1,139,758,968.81 = 449,528,913.73 : x
  2. Step 2: Convert to fraction form
    825,890,502.57/1,139,758,968.81 = 449,528,913.73/x
  3. Step 3: Cross multiply
    825,890,502.57x = 1,139,758,968.81 × 449,528,913.73
  4. Step 4: Simplify right side
    825,890,502.57x = 512,354,611,163,184,256
  5. Step 5: Solve for x
    x = 512,354,611,163,184,256/825,890,502.57
  6. Step 6: Final answer
    x = 620,366,270.79

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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.