Finding the Fourth Proportional to 586,368,830.80, 879,553,246.20 and 379,440,139.60
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Solution
The fourth proportional to 586,368,830.80, 879,553,246.20 and 379,440,139.60 is: 569,160,209.40
Step by Step Solution
- Step 1: Write the proportion equation
586,368,830.80 : 879,553,246.20 = 379,440,139.60 : x - Step 2: Convert to fraction form
586,368,830.80/879,553,246.20 = 379,440,139.60/x - Step 3: Cross multiply
586,368,830.80x = 879,553,246.20 × 379,440,139.60 - Step 4: Simplify right side
586,368,830.80x = 333,737,806,523,761,216 - Step 5: Solve for x
x = 333,737,806,523,761,216/586,368,830.80 - Step 6: Final answer
x = 569,160,209.40
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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.