Home / 465,477,199.68-642,971,701.60-345,019,382.16

Finding the Fourth Proportional to 465,477,199.68, 642,971,701.60 and 345,019,382.16

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Solution

The fourth proportional to 465,477,199.68, 642,971,701.60 and 345,019,382.16 is: 476,581,236.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,477,199.68 : 642,971,701.60 = 345,019,382.16 : x
  2. Step 2: Convert to fraction form
    465,477,199.68/642,971,701.60 = 345,019,382.16/x
  3. Step 3: Cross multiply
    465,477,199.68x = 642,971,701.60 × 345,019,382.16
  4. Step 4: Simplify right side
    465,477,199.68x = 221,837,699,232,395,904
  5. Step 5: Solve for x
    x = 221,837,699,232,395,904/465,477,199.68
  6. Step 6: Final answer
    x = 476,581,236.17

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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.