Finding the Fourth Proportional to 150,482,931.92, 207,649,842.40 and 84,389,829.28
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Solution
The fourth proportional to 150,482,931.92, 207,649,842.40 and 84,389,829.28 is: 116,448,653.19
Step by Step Solution
- Step 1: Write the proportion equation
150,482,931.92 : 207,649,842.40 = 84,389,829.28 : x - Step 2: Convert to fraction form
150,482,931.92/207,649,842.40 = 84,389,829.28/x - Step 3: Cross multiply
150,482,931.92x = 207,649,842.40 × 84,389,829.28 - Step 4: Simplify right side
150,482,931.92x = 17,523,534,750,154,906 - Step 5: Solve for x
x = 17,523,534,750,154,906/150,482,931.92 - Step 6: Final answer
x = 116,448,653.19
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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.