Home / 424,486,840.44-636,860,207.34-217,371,896.22

Finding the Fourth Proportional to 424,486,840.44, 636,860,207.34 and 217,371,896.22

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Solution

The fourth proportional to 424,486,840.44, 636,860,207.34 and 217,371,896.22 is: 326,124,387.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,486,840.44 : 636,860,207.34 = 217,371,896.22 : x
  2. Step 2: Convert to fraction form
    424,486,840.44/636,860,207.34 = 217,371,896.22/x
  3. Step 3: Cross multiply
    424,486,840.44x = 636,860,207.34 × 217,371,896.22
  4. Step 4: Simplify right side
    424,486,840.44x = 138,435,510,896,558,176
  5. Step 5: Solve for x
    x = 138,435,510,896,558,176/424,486,840.44
  6. Step 6: Final answer
    x = 326,124,387.63

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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.