Finding the Fourth Proportional to 210,350,070.80, 315,525,106.20 and 97,103,862.80
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Solution
The fourth proportional to 210,350,070.80, 315,525,106.20 and 97,103,862.80 is: 145,655,794.20
Step by Step Solution
- Step 1: Write the proportion equation
210,350,070.80 : 315,525,106.20 = 97,103,862.80 : x - Step 2: Convert to fraction form
210,350,070.80/315,525,106.20 = 97,103,862.80/x - Step 3: Cross multiply
210,350,070.80x = 315,525,106.20 × 97,103,862.80 - Step 4: Simplify right side
210,350,070.80x = 30,638,706,622,400,228 - Step 5: Solve for x
x = 30,638,706,622,400,228/210,350,070.80 - Step 6: Final answer
x = 145,655,794.20
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1.5x scale
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.