Finding the Fourth Proportional to 70,884,090.40, 106,326,135.60 and 19,766,027.20
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Solution
The fourth proportional to 70,884,090.40, 106,326,135.60 and 19,766,027.20 is: 29,649,040.80
Step by Step Solution
- Step 1: Write the proportion equation
70,884,090.40 : 106,326,135.60 = 19,766,027.20 : x - Step 2: Convert to fraction form
70,884,090.40/106,326,135.60 = 19,766,027.20/x - Step 3: Cross multiply
70,884,090.40x = 106,326,135.60 × 19,766,027.20 - Step 4: Simplify right side
70,884,090.40x = 2,101,645,288,340,488 - Step 5: Solve for x
x = 2,101,645,288,340,488/70,884,090.40 - Step 6: Final answer
x = 29,649,040.80
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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.