Finding the Fourth Proportional to 98,153,772.68, 135,444,241.62 and 56,903,322.26
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Solution
The fourth proportional to 98,153,772.68, 135,444,241.62 and 56,903,322.26 is: 78,521,967.30
Step by Step Solution
- Step 1: Write the proportion equation
98,153,772.68 : 135,444,241.62 = 56,903,322.26 : x - Step 2: Convert to fraction form
98,153,772.68/135,444,241.62 = 56,903,322.26/x - Step 3: Cross multiply
98,153,772.68x = 135,444,241.62 × 56,903,322.26 - Step 4: Simplify right side
98,153,772.68x = 7,707,227,329,164,164 - Step 5: Solve for x
x = 7,707,227,329,164,164/98,153,772.68 - Step 6: Final answer
x = 78,521,967.30
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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.