Finding the Fourth Proportional to 408,621,136.84, 563,909,078.34 and 222,994,109.80
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Solution
The fourth proportional to 408,621,136.84, 563,909,078.34 and 222,994,109.80 is: 307,738,370.82
Step by Step Solution
- Step 1: Write the proportion equation
408,621,136.84 : 563,909,078.34 = 222,994,109.80 : x - Step 2: Convert to fraction form
408,621,136.84/563,909,078.34 = 222,994,109.80/x - Step 3: Cross multiply
408,621,136.84x = 563,909,078.34 × 222,994,109.80 - Step 4: Simplify right side
408,621,136.84x = 125,748,402,932,566,768 - Step 5: Solve for x
x = 125,748,402,932,566,768/408,621,136.84 - Step 6: Final answer
x = 307,738,370.82
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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.