Finding the Fourth Proportional to 290,084,557.80, 435,126,836.70 and 232,688,929.80
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Solution
The fourth proportional to 290,084,557.80, 435,126,836.70 and 232,688,929.80 is: 349,033,394.70
Step by Step Solution
- Step 1: Write the proportion equation
290,084,557.80 : 435,126,836.70 = 232,688,929.80 : x - Step 2: Convert to fraction form
290,084,557.80/435,126,836.70 = 232,688,929.80/x - Step 3: Cross multiply
290,084,557.80x = 435,126,836.70 × 232,688,929.80 - Step 4: Simplify right side
290,084,557.80x = 101,249,197,958,982,368 - Step 5: Solve for x
x = 101,249,197,958,982,368/290,084,557.80 - Step 6: Final answer
x = 349,033,394.70
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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.