Finding the Fourth Proportional to 1,457,424,020.80, 2,186,136,031.20 and 1,316,840,161.60
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Solution
The fourth proportional to 1,457,424,020.80, 2,186,136,031.20 and 1,316,840,161.60 is: 1,975,260,242.40
Step by Step Solution
- Step 1: Write the proportion equation
1,457,424,020.80 : 2,186,136,031.20 = 1,316,840,161.60 : x - Step 2: Convert to fraction form
1,457,424,020.80/2,186,136,031.20 = 1,316,840,161.60/x - Step 3: Cross multiply
1,457,424,020.80x = 2,186,136,031.20 × 1,316,840,161.60 - Step 4: Simplify right side
1,457,424,020.80x = 2,878,791,724,604,989,952 - Step 5: Solve for x
x = 2,878,791,724,604,989,952/1,457,424,020.80 - Step 6: Final answer
x = 1,975,260,242.40
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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.