Home / 311,865,163,596.81-430,376,452,705.23-172,818,767,930.85

Finding the Fourth Proportional to 311,865,163,596.81, 430,376,452,705.23 and 172,818,767,930.85

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Solution

The fourth proportional to 311,865,163,596.81, 430,376,452,705.23 and 172,818,767,930.85 is: 238,491,300,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,865,163,596.81 : 430,376,452,705.23 = 172,818,767,930.85 : x
  2. Step 2: Convert to fraction form
    311,865,163,596.81/430,376,452,705.23 = 172,818,767,930.85/x
  3. Step 3: Cross multiply
    311,865,163,596.81x = 430,376,452,705.23 × 172,818,767,930.85
  4. Step 4: Simplify right side
    311,865,163,596.81x = 74,377,128,302,967,584,194,560
  5. Step 5: Solve for x
    x = 74,377,128,302,967,584,194,560/311,865,163,596.81
  6. Step 6: Final answer
    x = 238,491,300,038.64

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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.