Home / 577,845,808.45-866,758,568.40-400,419,331.72

Finding the Fourth Proportional to 577,845,808.45, 866,758,568.40 and 400,419,331.72

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Solution

The fourth proportional to 577,845,808.45, 866,758,568.40 and 400,419,331.72 is: 600,621,968.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,845,808.45 : 866,758,568.40 = 400,419,331.72 : x
  2. Step 2: Convert to fraction form
    577,845,808.45/866,758,568.40 = 400,419,331.72/x
  3. Step 3: Cross multiply
    577,845,808.45x = 866,758,568.40 × 400,419,331.72
  4. Step 4: Simplify right side
    577,845,808.45x = 347,066,886,719,144,960
  5. Step 5: Solve for x
    x = 347,066,886,719,144,960/577,845,808.45
  6. Step 6: Final answer
    x = 600,621,968.08

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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.