Finding the Fourth Proportional to 99,668,115.70, 149,502,173.55 and 97,428,627.70
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Solution
The fourth proportional to 99,668,115.70, 149,502,173.55 and 97,428,627.70 is: 146,142,941.55
Step by Step Solution
- Step 1: Write the proportion equation
99,668,115.70 : 149,502,173.55 = 97,428,627.70 : x - Step 2: Convert to fraction form
99,668,115.70/149,502,173.55 = 97,428,627.70/x - Step 3: Cross multiply
99,668,115.70x = 149,502,173.55 × 97,428,627.70 - Step 4: Simplify right side
99,668,115.70x = 14,565,791,607,143,738 - Step 5: Solve for x
x = 14,565,791,607,143,738/99,668,115.70 - Step 6: Final answer
x = 146,142,941.55
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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.