Finding the Fourth Proportional to 7,914,902,543.40, 11,884,069,136.70 and 4,428,271,669.80
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Solution
The fourth proportional to 7,914,902,543.40, 11,884,069,136.70 and 4,428,271,669.80 is: 6,648,962,054.99
Step by Step Solution
- Step 1: Write the proportion equation
7,914,902,543.40 : 11,884,069,136.70 = 4,428,271,669.80 : x - Step 2: Convert to fraction form
7,914,902,543.40/11,884,069,136.70 = 4,428,271,669.80/x - Step 3: Cross multiply
7,914,902,543.40x = 11,884,069,136.70 × 4,428,271,669.80 - Step 4: Simplify right side
7,914,902,543.40x = 52,625,886,679,993,155,584 - Step 5: Solve for x
x = 52,625,886,679,993,155,584/7,914,902,543.40 - Step 6: Final answer
x = 6,648,962,054.99
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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.