Finding the Fourth Proportional to 318,730,623.33, 439,836,646.95 and 177,594,551.49
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Solution
The fourth proportional to 318,730,623.33, 439,836,646.95 and 177,594,551.49 is: 245,074,010.23
Step by Step Solution
- Step 1: Write the proportion equation
318,730,623.33 : 439,836,646.95 = 177,594,551.49 : x - Step 2: Convert to fraction form
318,730,623.33/439,836,646.95 = 177,594,551.49/x - Step 3: Cross multiply
318,730,623.33x = 439,836,646.95 × 177,594,551.49 - Step 4: Simplify right side
318,730,623.33x = 78,112,592,043,950,736 - Step 5: Solve for x
x = 78,112,592,043,950,736/318,730,623.33 - Step 6: Final answer
x = 245,074,010.23
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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.