Finding the Fourth Proportional to 106,997,492.48, 147,701,737.36 and 72,237,264.80
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Solution
The fourth proportional to 106,997,492.48, 147,701,737.36 and 72,237,264.80 is: 99,717,939.79
Step by Step Solution
- Step 1: Write the proportion equation
106,997,492.48 : 147,701,737.36 = 72,237,264.80 : x - Step 2: Convert to fraction form
106,997,492.48/147,701,737.36 = 72,237,264.80/x - Step 3: Cross multiply
106,997,492.48x = 147,701,737.36 × 72,237,264.80 - Step 4: Simplify right side
106,997,492.48x = 10,669,569,513,094,374 - Step 5: Solve for x
x = 10,669,569,513,094,374/106,997,492.48 - Step 6: Final answer
x = 99,717,939.79
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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.