Finding the Fourth Proportional to 147,623,844.30, 221,435,766.45 and 86,149,898.70
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Solution
The fourth proportional to 147,623,844.30, 221,435,766.45 and 86,149,898.70 is: 129,224,848.05
Step by Step Solution
- Step 1: Write the proportion equation
147,623,844.30 : 221,435,766.45 = 86,149,898.70 : x - Step 2: Convert to fraction form
147,623,844.30/221,435,766.45 = 86,149,898.70/x - Step 3: Cross multiply
147,623,844.30x = 221,435,766.45 × 86,149,898.70 - Step 4: Simplify right side
147,623,844.30x = 19,076,668,848,224,360 - Step 5: Solve for x
x = 19,076,668,848,224,360/147,623,844.30 - Step 6: Final answer
x = 129,224,848.05
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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.