Finding the Fourth Proportional to 357,345,905.80, 536,018,858.70 and 115,008,809.80
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Solution
The fourth proportional to 357,345,905.80, 536,018,858.70 and 115,008,809.80 is: 172,513,214.70
Step by Step Solution
- Step 1: Write the proportion equation
357,345,905.80 : 536,018,858.70 = 115,008,809.80 : x - Step 2: Convert to fraction form
357,345,905.80/536,018,858.70 = 115,008,809.80/x - Step 3: Cross multiply
357,345,905.80x = 536,018,858.70 × 115,008,809.80 - Step 4: Simplify right side
357,345,905.80x = 61,646,890,969,441,376 - Step 5: Solve for x
x = 61,646,890,969,441,376/357,345,905.80 - Step 6: Final answer
x = 172,513,214.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.