Finding the Fourth Proportional to 70,021,067.68, 96,629,207.12 and 38,659,177.34
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Solution
The fourth proportional to 70,021,067.68, 96,629,207.12 and 38,659,177.34 is: 53,349,738.55
Step by Step Solution
- Step 1: Write the proportion equation
70,021,067.68 : 96,629,207.12 = 38,659,177.34 : x - Step 2: Convert to fraction form
70,021,067.68/96,629,207.12 = 38,659,177.34/x - Step 3: Cross multiply
70,021,067.68x = 96,629,207.12 × 38,659,177.34 - Step 4: Simplify right side
70,021,067.68x = 3,735,605,654,106,560 - Step 5: Solve for x
x = 3,735,605,654,106,560/70,021,067.68 - Step 6: Final answer
x = 53,349,738.55
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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.