Home / 1,137,756,910.96-1,570,231,960.32-642,751,505.92

Finding the Fourth Proportional to 1,137,756,910.96, 1,570,231,960.32 and 642,751,505.92

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Solution

The fourth proportional to 1,137,756,910.96, 1,570,231,960.32 and 642,751,505.92 is: 887,069,063.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,756,910.96 : 1,570,231,960.32 = 642,751,505.92 : x
  2. Step 2: Convert to fraction form
    1,137,756,910.96/1,570,231,960.32 = 642,751,505.92/x
  3. Step 3: Cross multiply
    1,137,756,910.96x = 1,570,231,960.32 × 642,751,505.92
  4. Step 4: Simplify right side
    1,137,756,910.96x = 1,009,268,957,139,393,536
  5. Step 5: Solve for x
    x = 1,009,268,957,139,393,536/1,137,756,910.96
  6. Step 6: Final answer
    x = 887,069,063.19

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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.