Finding the Fourth Proportional to 11,985,055.84, 16,539,542.04 and 7,090,152.13
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Solution
The fourth proportional to 11,985,055.84, 16,539,542.04 and 7,090,152.13 is: 9,784,507.54
Step by Step Solution
- Step 1: Write the proportion equation
11,985,055.84 : 16,539,542.04 = 7,090,152.13 : x - Step 2: Convert to fraction form
11,985,055.84/16,539,542.04 = 7,090,152.13/x - Step 3: Cross multiply
11,985,055.84x = 16,539,542.04 × 7,090,152.13 - Step 4: Simplify right side
11,985,055.84x = 117,267,869,224,130.53 - Step 5: Solve for x
x = 117,267,869,224,130.53/11,985,055.84 - Step 6: Final answer
x = 9,784,507.54
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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.