Finding the Fourth Proportional to 153,948,637.75, 212,447,427.62 and 83,382,492.52
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Solution
The fourth proportional to 153,948,637.75, 212,447,427.62 and 83,382,492.52 is: 115,066,922.99
Step by Step Solution
- Step 1: Write the proportion equation
153,948,637.75 : 212,447,427.62 = 83,382,492.52 : x - Step 2: Convert to fraction form
153,948,637.75/212,447,427.62 = 83,382,492.52/x - Step 3: Cross multiply
153,948,637.75x = 212,447,427.62 × 83,382,492.52 - Step 4: Simplify right side
153,948,637.75x = 17,714,396,044,000,978 - Step 5: Solve for x
x = 17,714,396,044,000,978/153,948,637.75 - Step 6: Final answer
x = 115,066,922.99
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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.