Finding the Fourth Proportional to 695,386,907.80, 959,641,570.68 and 382,121,202.76
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Solution
The fourth proportional to 695,386,907.80, 959,641,570.68 and 382,121,202.76 is: 527,331,456.91
Step by Step Solution
- Step 1: Write the proportion equation
695,386,907.80 : 959,641,570.68 = 382,121,202.76 : x - Step 2: Convert to fraction form
695,386,907.80/959,641,570.68 = 382,121,202.76/x - Step 3: Cross multiply
695,386,907.80x = 959,641,570.68 × 382,121,202.76 - Step 4: Simplify right side
695,386,907.80x = 366,699,391,206,737,152 - Step 5: Solve for x
x = 366,699,391,206,737,152/695,386,907.80 - Step 6: Final answer
x = 527,331,456.91
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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.