Finding the Fourth Proportional to 98,671,864.37, 136,165,522.64 and 54,617,918.09
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Solution
The fourth proportional to 98,671,864.37, 136,165,522.64 and 54,617,918.09 is: 75,371,813.53
Step by Step Solution
- Step 1: Write the proportion equation
98,671,864.37 : 136,165,522.64 = 54,617,918.09 : x - Step 2: Convert to fraction form
98,671,864.37/136,165,522.64 = 54,617,918.09/x - Step 3: Cross multiply
98,671,864.37x = 136,165,522.64 × 54,617,918.09 - Step 4: Simplify right side
98,671,864.37x = 7,437,077,361,279,643 - Step 5: Solve for x
x = 7,437,077,361,279,643/98,671,864.37 - Step 6: Final answer
x = 75,371,813.53
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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.