Finding the Fourth Proportional to 147,623,794.30, 221,435,691.45 and 86,149,848.70
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Solution
The fourth proportional to 147,623,794.30, 221,435,691.45 and 86,149,848.70 is: 129,224,773.05
Step by Step Solution
- Step 1: Write the proportion equation
147,623,794.30 : 221,435,691.45 = 86,149,848.70 : x - Step 2: Convert to fraction form
147,623,794.30/221,435,691.45 = 86,149,848.70/x - Step 3: Cross multiply
147,623,794.30x = 221,435,691.45 × 86,149,848.70 - Step 4: Simplify right side
147,623,794.30x = 19,076,651,315,197,384 - Step 5: Solve for x
x = 19,076,651,315,197,384/147,623,794.30 - Step 6: Final answer
x = 129,224,773.05
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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.