Finding the Fourth Proportional to 464,721,811.80, 697,082,717.70 and 414,557,280.60
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Solution
The fourth proportional to 464,721,811.80, 697,082,717.70 and 414,557,280.60 is: 621,835,920.90
Step by Step Solution
- Step 1: Write the proportion equation
464,721,811.80 : 697,082,717.70 = 414,557,280.60 : x - Step 2: Convert to fraction form
464,721,811.80/697,082,717.70 = 414,557,280.60/x - Step 3: Cross multiply
464,721,811.80x = 697,082,717.70 × 414,557,280.60 - Step 4: Simplify right side
464,721,811.80x = 288,980,715,802,969,536 - Step 5: Solve for x
x = 288,980,715,802,969,536/464,721,811.80 - Step 6: Final answer
x = 621,835,920.90
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1.5x scale
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.