Home / 864,921,589.66-1,193,611,066.23-493,636,171.42

Finding the Fourth Proportional to 864,921,589.66, 1,193,611,066.23 and 493,636,171.42

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Solution

The fourth proportional to 864,921,589.66, 1,193,611,066.23 and 493,636,171.42 is: 681,228,915.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,921,589.66 : 1,193,611,066.23 = 493,636,171.42 : x
  2. Step 2: Convert to fraction form
    864,921,589.66/1,193,611,066.23 = 493,636,171.42/x
  3. Step 3: Cross multiply
    864,921,589.66x = 1,193,611,066.23 × 493,636,171.42
  4. Step 4: Simplify right side
    864,921,589.66x = 589,209,596,898,321,280
  5. Step 5: Solve for x
    x = 589,209,596,898,321,280/864,921,589.66
  6. Step 6: Final answer
    x = 681,228,915.94

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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.