Home / 90,221,878.22-124,733,890.20-66,663,257.84

Finding the Fourth Proportional to 90,221,878.22, 124,733,890.20 and 66,663,257.84

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Solution

The fourth proportional to 90,221,878.22, 124,733,890.20 and 66,663,257.84 is: 92,163,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,221,878.22 : 124,733,890.20 = 66,663,257.84 : x
  2. Step 2: Convert to fraction form
    90,221,878.22/124,733,890.20 = 66,663,257.84/x
  3. Step 3: Cross multiply
    90,221,878.22x = 124,733,890.20 × 66,663,257.84
  4. Step 4: Simplify right side
    90,221,878.22x = 8,315,167,483,788,850
  5. Step 5: Solve for x
    x = 8,315,167,483,788,850/90,221,878.22
  6. Step 6: Final answer
    x = 92,163,537.80

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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.