Home / 70,738,985.21-97,618,799.68-39,799,080.68

Finding the Fourth Proportional to 70,738,985.21, 97,618,799.68 and 39,799,080.68

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Solution

The fourth proportional to 70,738,985.21, 97,618,799.68 and 39,799,080.68 is: 54,922,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,738,985.21 : 97,618,799.68 = 39,799,080.68 : x
  2. Step 2: Convert to fraction form
    70,738,985.21/97,618,799.68 = 39,799,080.68/x
  3. Step 3: Cross multiply
    70,738,985.21x = 97,618,799.68 × 39,799,080.68
  4. Step 4: Simplify right side
    70,738,985.21x = 3,885,138,483,661,988.50
  5. Step 5: Solve for x
    x = 3,885,138,483,661,988.50/70,738,985.21
  6. Step 6: Final answer
    x = 54,922,168.76

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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.