Finding the Fourth Proportional to 279,448,237.80, 419,172,356.70 and 177,411,565.80
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Solution
The fourth proportional to 279,448,237.80, 419,172,356.70 and 177,411,565.80 is: 266,117,348.70
Step by Step Solution
- Step 1: Write the proportion equation
279,448,237.80 : 419,172,356.70 = 177,411,565.80 : x - Step 2: Convert to fraction form
279,448,237.80/419,172,356.70 = 177,411,565.80/x - Step 3: Cross multiply
279,448,237.80x = 419,172,356.70 × 177,411,565.80 - Step 4: Simplify right side
279,448,237.80x = 74,366,024,142,223,120 - Step 5: Solve for x
x = 74,366,024,142,223,120/279,448,237.80 - Step 6: Final answer
x = 266,117,348.70
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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.