Finding the Fourth Proportional to 219,629,024.80, 302,962,129.68 and 136,979,320.48
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Solution
The fourth proportional to 219,629,024.80, 302,962,129.68 and 136,979,320.48 is: 188,952,925.02
Step by Step Solution
- Step 1: Write the proportion equation
219,629,024.80 : 302,962,129.68 = 136,979,320.48 : x - Step 2: Convert to fraction form
219,629,024.80/302,962,129.68 = 136,979,320.48/x - Step 3: Cross multiply
219,629,024.80x = 302,962,129.68 × 136,979,320.48 - Step 4: Simplify right side
219,629,024.80x = 41,499,546,654,740,040 - Step 5: Solve for x
x = 41,499,546,654,740,040/219,629,024.80 - Step 6: Final answer
x = 188,952,925.02
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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.