Home / 868,252,807-1,198,053,993.90-515,819,739.88

Finding the Fourth Proportional to 868,252,807, 1,198,053,993.90 and 515,819,739.88

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Solution

The fourth proportional to 868,252,807, 1,198,053,993.90 and 515,819,739.88 is: 711,751,110.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,252,807 : 1,198,053,993.90 = 515,819,739.88 : x
  2. Step 2: Convert to fraction form
    868,252,807/1,198,053,993.90 = 515,819,739.88/x
  3. Step 3: Cross multiply
    868,252,807x = 1,198,053,993.90 × 515,819,739.88
  4. Step 4: Simplify right side
    868,252,807x = 617,979,899,495,693,184
  5. Step 5: Solve for x
    x = 617,979,899,495,693,184/868,252,807
  6. Step 6: Final answer
    x = 711,751,110.41

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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.