Home / 523,436,723.67-722,340,495.88-288,486,823.41

Finding the Fourth Proportional to 523,436,723.67, 722,340,495.88 and 288,486,823.41

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Solution

The fourth proportional to 523,436,723.67, 722,340,495.88 and 288,486,823.41 is: 398,110,613.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,436,723.67 : 722,340,495.88 = 288,486,823.41 : x
  2. Step 2: Convert to fraction form
    523,436,723.67/722,340,495.88 = 288,486,823.41/x
  3. Step 3: Cross multiply
    523,436,723.67x = 722,340,495.88 × 288,486,823.41
  4. Step 4: Simplify right side
    523,436,723.67x = 208,385,715,076,825,408
  5. Step 5: Solve for x
    x = 208,385,715,076,825,408/523,436,723.67
  6. Step 6: Final answer
    x = 398,110,613.29

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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.