Finding the Fourth Proportional to 147,623,862.30, 221,435,793.45 and 86,149,916.70
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Solution
The fourth proportional to 147,623,862.30, 221,435,793.45 and 86,149,916.70 is: 129,224,875.05
Step by Step Solution
- Step 1: Write the proportion equation
147,623,862.30 : 221,435,793.45 = 86,149,916.70 : x - Step 2: Convert to fraction form
147,623,862.30/221,435,793.45 = 86,149,916.70/x - Step 3: Cross multiply
147,623,862.30x = 221,435,793.45 × 86,149,916.70 - Step 4: Simplify right side
147,623,862.30x = 19,076,675,160,115,904 - Step 5: Solve for x
x = 19,076,675,160,115,904/147,623,862.30 - Step 6: Final answer
x = 129,224,875.05
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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.