Home / 431,328,527.10-646,992,790.65-268,069,851.90

Finding the Fourth Proportional to 431,328,527.10, 646,992,790.65 and 268,069,851.90

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Solution

The fourth proportional to 431,328,527.10, 646,992,790.65 and 268,069,851.90 is: 402,104,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,328,527.10 : 646,992,790.65 = 268,069,851.90 : x
  2. Step 2: Convert to fraction form
    431,328,527.10/646,992,790.65 = 268,069,851.90/x
  3. Step 3: Cross multiply
    431,328,527.10x = 646,992,790.65 × 268,069,851.90
  4. Step 4: Simplify right side
    431,328,527.10x = 173,439,261,569,913,216
  5. Step 5: Solve for x
    x = 173,439,261,569,913,216/431,328,527.10
  6. Step 6: Final answer
    x = 402,104,777.85

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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.