Finding the Fourth Proportional to 15,800,468.13, 21,804,646.04 and 8,557,124.13
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Solution
The fourth proportional to 15,800,468.13, 21,804,646.04 and 8,557,124.13 is: 11,808,831.31
Step by Step Solution
- Step 1: Write the proportion equation
15,800,468.13 : 21,804,646.04 = 8,557,124.13 : x - Step 2: Convert to fraction form
15,800,468.13/21,804,646.04 = 8,557,124.13/x - Step 3: Cross multiply
15,800,468.13x = 21,804,646.04 × 8,557,124.13 - Step 4: Simplify right side
15,800,468.13x = 186,585,062,774,992.97 - Step 5: Solve for x
x = 186,585,062,774,992.97/15,800,468.13 - Step 6: Final answer
x = 11,808,831.31
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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.