Finding the Fourth Proportional to 126,378,431.33, 174,402,471.53 and 70,623,851.79
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Solution
The fourth proportional to 126,378,431.33, 174,402,471.53 and 70,623,851.79 is: 97,461,047.52
Step by Step Solution
- Step 1: Write the proportion equation
126,378,431.33 : 174,402,471.53 = 70,623,851.79 : x - Step 2: Convert to fraction form
126,378,431.33/174,402,471.53 = 70,623,851.79/x - Step 3: Cross multiply
126,378,431.33x = 174,402,471.53 × 70,623,851.79 - Step 4: Simplify right side
126,378,431.33x = 12,316,974,301,320,976 - Step 5: Solve for x
x = 12,316,974,301,320,976/126,378,431.33 - Step 6: Final answer
x = 97,461,047.52
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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.