Home / 519,189,030,708.05-716,485,069,201.83-287,706,416,615.66

Finding the Fourth Proportional to 519,189,030,708.05, 716,485,069,201.83 and 287,706,416,615.66

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Solution

The fourth proportional to 519,189,030,708.05, 716,485,069,201.83 and 287,706,416,615.66 is: 397,037,186,123.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,189,030,708.05 : 716,485,069,201.83 = 287,706,416,615.66 : x
  2. Step 2: Convert to fraction form
    519,189,030,708.05/716,485,069,201.83 = 287,706,416,615.66/x
  3. Step 3: Cross multiply
    519,189,030,708.05x = 716,485,069,201.83 × 287,706,416,615.66
  4. Step 4: Simplify right side
    519,189,030,708.05x = 206,137,351,818,681,643,958,272
  5. Step 5: Solve for x
    x = 206,137,351,818,681,643,958,272/519,189,030,708.05
  6. Step 6: Final answer
    x = 397,037,186,123.83

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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.