Finding the Fourth Proportional to 141,528,489.24, 195,308,914.56 and 79,648,825.98
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Solution
The fourth proportional to 141,528,489.24, 195,308,914.56 and 79,648,825.98 is: 109,915,154.41
Step by Step Solution
- Step 1: Write the proportion equation
141,528,489.24 : 195,308,914.56 = 79,648,825.98 : x - Step 2: Convert to fraction form
141,528,489.24/195,308,914.56 = 79,648,825.98/x - Step 3: Cross multiply
141,528,489.24x = 195,308,914.56 × 79,648,825.98 - Step 4: Simplify right side
141,528,489.24x = 15,556,125,748,132,130 - Step 5: Solve for x
x = 15,556,125,748,132,130/141,528,489.24 - Step 6: Final answer
x = 109,915,154.41
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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.