Finding the Fourth Proportional to 405,126,907.40, 559,075,680.42 and 219,487,917.62
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Solution
The fourth proportional to 405,126,907.40, 559,075,680.42 and 219,487,917.62 is: 302,893,623.32
Step by Step Solution
- Step 1: Write the proportion equation
405,126,907.40 : 559,075,680.42 = 219,487,917.62 : x - Step 2: Convert to fraction form
405,126,907.40/559,075,680.42 = 219,487,917.62/x - Step 3: Cross multiply
405,126,907.40x = 559,075,680.42 × 219,487,917.62 - Step 4: Simplify right side
405,126,907.40x = 122,710,356,887,370,400 - Step 5: Solve for x
x = 122,710,356,887,370,400/405,126,907.40 - Step 6: Final answer
x = 302,893,623.32
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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.