Finding the Fourth Proportional to 145,655,395.98, 218,514,586.77 and 77,488,180.62
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Solution
The fourth proportional to 145,655,395.98, 218,514,586.77 and 77,488,180.62 is: 116,249,024.99
Step by Step Solution
- Step 1: Write the proportion equation
145,655,395.98 : 218,514,586.77 = 77,488,180.62 : x - Step 2: Convert to fraction form
145,655,395.98/218,514,586.77 = 77,488,180.62/x - Step 3: Cross multiply
145,655,395.98x = 218,514,586.77 × 77,488,180.62 - Step 4: Simplify right side
145,655,395.98x = 16,932,297,767,738,424 - Step 5: Solve for x
x = 16,932,297,767,738,424/145,655,395.98 - Step 6: Final answer
x = 116,249,024.99
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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.