Finding the Fourth Proportional to 28,558,471.62, 39,443,139.48 and 19,249,987.26
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Solution
The fourth proportional to 28,558,471.62, 39,443,139.48 and 19,249,987.26 is: 26,586,854.60
Step by Step Solution
- Step 1: Write the proportion equation
28,558,471.62 : 39,443,139.48 = 19,249,987.26 : x - Step 2: Convert to fraction form
28,558,471.62/39,443,139.48 = 19,249,987.26/x - Step 3: Cross multiply
28,558,471.62x = 39,443,139.48 × 19,249,987.26 - Step 4: Simplify right side
28,558,471.62x = 759,279,932,484,403 - Step 5: Solve for x
x = 759,279,932,484,403/28,558,471.62 - Step 6: Final answer
x = 26,586,854.60
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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.