Finding the Fourth Proportional to 13,183,746,176.13, 18,195,129,437.02 and 7,831,327,681.96
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Solution
The fourth proportional to 13,183,746,176.13, 18,195,129,437.02 and 7,831,327,681.96 is: 10,808,158,692.78
Step by Step Solution
- Step 1: Write the proportion equation
13,183,746,176.13 : 18,195,129,437.02 = 7,831,327,681.96 : x - Step 2: Convert to fraction form
13,183,746,176.13/18,195,129,437.02 = 7,831,327,681.96/x - Step 3: Cross multiply
13,183,746,176.13x = 18,195,129,437.02 × 7,831,327,681.96 - Step 4: Simplify right side
13,183,746,176.13x = 142,492,020,836,968,366,080 - Step 5: Solve for x
x = 142,492,020,836,968,366,080/13,183,746,176.13 - Step 6: Final answer
x = 10,808,158,692.78
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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.