Finding the Fourth Proportional to 297,925,425.36, 411,130,639.68 and 172,482,910.56
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Solution
The fourth proportional to 297,925,425.36, 411,130,639.68 and 172,482,910.56 is: 238,022,683.92
Step by Step Solution
- Step 1: Write the proportion equation
297,925,425.36 : 411,130,639.68 = 172,482,910.56 : x - Step 2: Convert to fraction form
297,925,425.36/411,130,639.68 = 172,482,910.56/x - Step 3: Cross multiply
297,925,425.36x = 411,130,639.68 × 172,482,910.56 - Step 4: Simplify right side
297,925,425.36x = 70,913,009,352,401,032 - Step 5: Solve for x
x = 70,913,009,352,401,032/297,925,425.36 - Step 6: Final answer
x = 238,022,683.92
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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.