Finding the Fourth Proportional to 425,736,177.80, 638,604,266.70 and 102,620,049.80
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Solution
The fourth proportional to 425,736,177.80, 638,604,266.70 and 102,620,049.80 is: 153,930,074.70
Step by Step Solution
- Step 1: Write the proportion equation
425,736,177.80 : 638,604,266.70 = 102,620,049.80 : x - Step 2: Convert to fraction form
425,736,177.80/638,604,266.70 = 102,620,049.80/x - Step 3: Cross multiply
425,736,177.80x = 638,604,266.70 × 102,620,049.80 - Step 4: Simplify right side
425,736,177.80x = 65,533,601,651,246,488 - Step 5: Solve for x
x = 65,533,601,651,246,488/425,736,177.80 - Step 6: Final answer
x = 153,930,074.70
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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.