Finding the Fourth Proportional to 28,174,290.40, 38,862,454.62 and 19,349,482.96
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Solution
The fourth proportional to 28,174,290.40, 38,862,454.62 and 19,349,482.96 is: 26,689,879.06
Step by Step Solution
- Step 1: Write the proportion equation
28,174,290.40 : 38,862,454.62 = 19,349,482.96 : x - Step 2: Convert to fraction form
28,174,290.40/38,862,454.62 = 19,349,482.96/x - Step 3: Cross multiply
28,174,290.40x = 38,862,454.62 × 19,349,482.96 - Step 4: Simplify right side
28,174,290.40x = 751,968,403,453,463.25 - Step 5: Solve for x
x = 751,968,403,453,463.25/28,174,290.40 - Step 6: Final answer
x = 26,689,879.06
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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.