Finding the Fourth Proportional to 81,841,132.24, 122,813,967.68 and 38,712,879.88
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Solution
The fourth proportional to 81,841,132.24, 122,813,967.68 and 38,712,879.88 is: 58,094,044.50
Step by Step Solution
- Step 1: Write the proportion equation
81,841,132.24 : 122,813,967.68 = 38,712,879.88 : x - Step 2: Convert to fraction form
81,841,132.24/122,813,967.68 = 38,712,879.88/x - Step 3: Cross multiply
81,841,132.24x = 122,813,967.68 × 38,712,879.88 - Step 4: Simplify right side
81,841,132.24x = 4,754,482,378,382,043 - Step 5: Solve for x
x = 4,754,482,378,382,043/81,841,132.24 - Step 6: Final answer
x = 58,094,044.50
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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.