Finding the Fourth Proportional to 357,467,686.80, 536,201,530.20 and 253,163,533.20
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Solution
The fourth proportional to 357,467,686.80, 536,201,530.20 and 253,163,533.20 is: 379,745,299.80
Step by Step Solution
- Step 1: Write the proportion equation
357,467,686.80 : 536,201,530.20 = 253,163,533.20 : x - Step 2: Convert to fraction form
357,467,686.80/536,201,530.20 = 253,163,533.20/x - Step 3: Cross multiply
357,467,686.80x = 536,201,530.20 × 253,163,533.20 - Step 4: Simplify right side
357,467,686.80x = 135,746,673,892,678,496 - Step 5: Solve for x
x = 135,746,673,892,678,496/357,467,686.80 - Step 6: Final answer
x = 379,745,299.80
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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.