Finding the Fourth Proportional to 121,549,859.96, 167,754,780.88 and 69,326,924.36
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Solution
The fourth proportional to 121,549,859.96, 167,754,780.88 and 69,326,924.36 is: 95,680,266.59
Step by Step Solution
- Step 1: Write the proportion equation
121,549,859.96 : 167,754,780.88 = 69,326,924.36 : x - Step 2: Convert to fraction form
121,549,859.96/167,754,780.88 = 69,326,924.36/x - Step 3: Cross multiply
121,549,859.96x = 167,754,780.88 × 69,326,924.36 - Step 4: Simplify right side
121,549,859.96x = 11,629,923,004,084,044 - Step 5: Solve for x
x = 11,629,923,004,084,044/121,549,859.96 - Step 6: Final answer
x = 95,680,266.59
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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.