Finding the Fourth Proportional to 913,754,422.56, 1,368,396,286.58 and 825,321,643.86
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Solution
The fourth proportional to 913,754,422.56, 1,368,396,286.58 and 825,321,643.86 is: 1,235,963,454.52
Step by Step Solution
- Step 1: Write the proportion equation
913,754,422.56 : 1,368,396,286.58 = 825,321,643.86 : x - Step 2: Convert to fraction form
913,754,422.56/1,368,396,286.58 = 825,321,643.86/x - Step 3: Cross multiply
913,754,422.56x = 1,368,396,286.58 × 825,321,643.86 - Step 4: Simplify right side
913,754,422.56x = 1,129,367,072,692,125,184 - Step 5: Solve for x
x = 1,129,367,072,692,125,184/913,754,422.56 - Step 6: Final answer
x = 1,235,963,454.52
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1.5x scale
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.