Finding the Fourth Proportional to 118,356,512.51, 163,337,032.68 and 66,145,547.09
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Solution
The fourth proportional to 118,356,512.51, 163,337,032.68 and 66,145,547.09 is: 91,283,674.70
Step by Step Solution
- Step 1: Write the proportion equation
118,356,512.51 : 163,337,032.68 = 66,145,547.09 : x - Step 2: Convert to fraction form
118,356,512.51/163,337,032.68 = 66,145,547.09/x - Step 3: Cross multiply
118,356,512.51x = 163,337,032.68 × 66,145,547.09 - Step 4: Simplify right side
118,356,512.51x = 10,804,017,386,836,106 - Step 5: Solve for x
x = 10,804,017,386,836,106/118,356,512.51 - Step 6: Final answer
x = 91,283,674.70
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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.