Finding the Fourth Proportional to 99,652,210.20, 149,478,315.30 and 91,999,459.80
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Solution
The fourth proportional to 99,652,210.20, 149,478,315.30 and 91,999,459.80 is: 137,999,189.70
Step by Step Solution
- Step 1: Write the proportion equation
99,652,210.20 : 149,478,315.30 = 91,999,459.80 : x - Step 2: Convert to fraction form
99,652,210.20/149,478,315.30 = 91,999,459.80/x - Step 3: Cross multiply
99,652,210.20x = 149,478,315.30 × 91,999,459.80 - Step 4: Simplify right side
99,652,210.20x = 13,751,924,259,414,076 - Step 5: Solve for x
x = 13,751,924,259,414,076/99,652,210.20 - Step 6: Final answer
x = 137,999,189.70
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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.