Home / 120,017,762.53-165,651,156.77-72,964,837.85

Finding the Fourth Proportional to 120,017,762.53, 165,651,156.77 and 72,964,837.85

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Solution

The fourth proportional to 120,017,762.53, 165,651,156.77 and 72,964,837.85 is: 100,707,674.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,017,762.53 : 165,651,156.77 = 72,964,837.85 : x
  2. Step 2: Convert to fraction form
    120,017,762.53/165,651,156.77 = 72,964,837.85/x
  3. Step 3: Cross multiply
    120,017,762.53x = 165,651,156.77 × 72,964,837.85
  4. Step 4: Simplify right side
    120,017,762.53x = 12,086,709,793,023,154
  5. Step 5: Solve for x
    x = 12,086,709,793,023,154/120,017,762.53
  6. Step 6: Final answer
    x = 100,707,674.75

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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.