Home / 120,170,918,447.76-180,218,107,037.76-39,477,891,418.32

Finding the Fourth Proportional to 120,170,918,447.76, 180,218,107,037.76 and 39,477,891,418.32

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Solution

The fourth proportional to 120,170,918,447.76, 180,218,107,037.76 and 39,477,891,418.32 is: 59,204,264,668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,170,918,447.76 : 180,218,107,037.76 = 39,477,891,418.32 : x
  2. Step 2: Convert to fraction form
    120,170,918,447.76/180,218,107,037.76 = 39,477,891,418.32/x
  3. Step 3: Cross multiply
    120,170,918,447.76x = 180,218,107,037.76 × 39,477,891,418.32
  4. Step 4: Simplify right side
    120,170,918,447.76x = 7,114,630,861,251,860,758,528
  5. Step 5: Solve for x
    x = 7,114,630,861,251,860,758,528/120,170,918,447.76
  6. Step 6: Final answer
    x = 59,204,264,668.62

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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.