Finding the Fourth Proportional to 19,819,132.40, 29,708,612.18 and 13,430,030.60
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Solution
The fourth proportional to 19,819,132.40, 29,708,612.18 and 13,430,030.60 is: 20,131,434.75
Step by Step Solution
- Step 1: Write the proportion equation
19,819,132.40 : 29,708,612.18 = 13,430,030.60 : x - Step 2: Convert to fraction form
19,819,132.40/29,708,612.18 = 13,430,030.60/x - Step 3: Cross multiply
19,819,132.40x = 29,708,612.18 × 13,430,030.60 - Step 4: Simplify right side
19,819,132.40x = 398,987,570,660,932.69 - Step 5: Solve for x
x = 398,987,570,660,932.69/19,819,132.40 - Step 6: Final answer
x = 20,131,434.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.