Finding the Fourth Proportional to 70,884,180.40, 106,326,270.60 and 19,766,117.20
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Solution
The fourth proportional to 70,884,180.40, 106,326,270.60 and 19,766,117.20 is: 29,649,175.80
Step by Step Solution
- Step 1: Write the proportion equation
70,884,180.40 : 106,326,270.60 = 19,766,117.20 : x - Step 2: Convert to fraction form
70,884,180.40/106,326,270.60 = 19,766,117.20/x - Step 3: Cross multiply
70,884,180.40x = 106,326,270.60 × 19,766,117.20 - Step 4: Simplify right side
70,884,180.40x = 2,101,657,526,118,514 - Step 5: Solve for x
x = 2,101,657,526,118,514/70,884,180.40 - Step 6: Final answer
x = 29,649,175.80
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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.