Finding the Fourth Proportional to 1,424,157,897.60, 2,136,236,846.40 and 873,159,868.80
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Solution
The fourth proportional to 1,424,157,897.60, 2,136,236,846.40 and 873,159,868.80 is: 1,309,739,803.20
Step by Step Solution
- Step 1: Write the proportion equation
1,424,157,897.60 : 2,136,236,846.40 = 873,159,868.80 : x - Step 2: Convert to fraction form
1,424,157,897.60/2,136,236,846.40 = 873,159,868.80/x - Step 3: Cross multiply
1,424,157,897.60x = 2,136,236,846.40 × 873,159,868.80 - Step 4: Simplify right side
1,424,157,897.60x = 1,865,276,284,528,349,696 - Step 5: Solve for x
x = 1,865,276,284,528,349,696/1,424,157,897.60 - Step 6: Final answer
x = 1,309,739,803.20
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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.