Finding the Fourth Proportional to 7,620,679.93, 10,525,266.47 and 5,018,814.94
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Solution
The fourth proportional to 7,620,679.93, 10,525,266.47 and 5,018,814.94 is: 6,931,712.80
Step by Step Solution
- Step 1: Write the proportion equation
7,620,679.93 : 10,525,266.47 = 5,018,814.94 : x - Step 2: Convert to fraction form
7,620,679.93/10,525,266.47 = 5,018,814.94/x - Step 3: Cross multiply
7,620,679.93x = 10,525,266.47 × 5,018,814.94 - Step 4: Simplify right side
7,620,679.93x = 52,824,364,607,117.07 - Step 5: Solve for x
x = 52,824,364,607,117.07/7,620,679.93 - Step 6: Final answer
x = 6,931,712.80
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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.