Finding the Fourth Proportional to 1,199,756,750.67, 1,799,169,863.63 and 412,660,743.21
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Solution
The fourth proportional to 1,199,756,750.67, 1,799,169,863.63 and 412,660,743.21 is: 618,831,086.11
Step by Step Solution
- Step 1: Write the proportion equation
1,199,756,750.67 : 1,799,169,863.63 = 412,660,743.21 : x - Step 2: Convert to fraction form
1,199,756,750.67/1,799,169,863.63 = 412,660,743.21/x - Step 3: Cross multiply
1,199,756,750.67x = 1,799,169,863.63 × 412,660,743.21 - Step 4: Simplify right side
1,199,756,750.67x = 742,446,773,084,526,848 - Step 5: Solve for x
x = 742,446,773,084,526,848/1,199,756,750.67 - Step 6: Final answer
x = 618,831,086.11
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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.