Finding the Fourth Proportional to 92,772,083.20, 139,158,124.80 and 87,481,292.80
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Solution
The fourth proportional to 92,772,083.20, 139,158,124.80 and 87,481,292.80 is: 131,221,939.20
Step by Step Solution
- Step 1: Write the proportion equation
92,772,083.20 : 139,158,124.80 = 87,481,292.80 : x - Step 2: Convert to fraction form
92,772,083.20/139,158,124.80 = 87,481,292.80/x - Step 3: Cross multiply
92,772,083.20x = 139,158,124.80 × 87,481,292.80 - Step 4: Simplify right side
92,772,083.20x = 12,173,732,661,127,742 - Step 5: Solve for x
x = 12,173,732,661,127,742/92,772,083.20 - Step 6: Final answer
x = 131,221,939.20
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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.