Finding the Fourth Proportional to 14,242,871.42, 19,655,135.91 and 7,716,663.08
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Solution
The fourth proportional to 14,242,871.42, 19,655,135.91 and 7,716,663.08 is: 10,648,980.61
Step by Step Solution
- Step 1: Write the proportion equation
14,242,871.42 : 19,655,135.91 = 7,716,663.08 : x - Step 2: Convert to fraction form
14,242,871.42/19,655,135.91 = 7,716,663.08/x - Step 3: Cross multiply
14,242,871.42x = 19,655,135.91 × 7,716,663.08 - Step 4: Simplify right side
14,242,871.42x = 151,672,061,609,079.22 - Step 5: Solve for x
x = 151,672,061,609,079.22/14,242,871.42 - Step 6: Final answer
x = 10,648,980.61
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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.