Home / 636,920,583,739.85-955,384,447,189.20-212,447,683,447.58

Finding the Fourth Proportional to 636,920,583,739.85, 955,384,447,189.20 and 212,447,683,447.58

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Solution

The fourth proportional to 636,920,583,739.85, 955,384,447,189.20 and 212,447,683,447.58 is: 318,672,716,487.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,920,583,739.85 : 955,384,447,189.20 = 212,447,683,447.58 : x
  2. Step 2: Convert to fraction form
    636,920,583,739.85/955,384,447,189.20 = 212,447,683,447.58/x
  3. Step 3: Cross multiply
    636,920,583,739.85x = 955,384,447,189.20 × 212,447,683,447.58
  4. Step 4: Simplify right side
    636,920,583,739.85x = 202,969,212,607,192,341,938,176
  5. Step 5: Solve for x
    x = 202,969,212,607,192,341,938,176/636,920,583,739.85
  6. Step 6: Final answer
    x = 318,672,716,487.52

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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.