Finding the Fourth Proportional to 409,068,536.66, 613,688,982.12 and 132,698,171.34
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Solution
The fourth proportional to 409,068,536.66, 613,688,982.12 and 132,698,171.34 is: 199,075,212.10
Step by Step Solution
- Step 1: Write the proportion equation
409,068,536.66 : 613,688,982.12 = 132,698,171.34 : x - Step 2: Convert to fraction form
409,068,536.66/613,688,982.12 = 132,698,171.34/x - Step 3: Cross multiply
409,068,536.66x = 613,688,982.12 × 132,698,171.34 - Step 4: Simplify right side
409,068,536.66x = 81,435,405,698,829,952 - Step 5: Solve for x
x = 81,435,405,698,829,952/409,068,536.66 - Step 6: Final answer
x = 199,075,212.10
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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.