Finding the Fourth Proportional to 340,659,416.80, 510,989,125.20 and 187,226,495.20
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Solution
The fourth proportional to 340,659,416.80, 510,989,125.20 and 187,226,495.20 is: 280,839,742.80
Step by Step Solution
- Step 1: Write the proportion equation
340,659,416.80 : 510,989,125.20 = 187,226,495.20 : x - Step 2: Convert to fraction form
340,659,416.80/510,989,125.20 = 187,226,495.20/x - Step 3: Cross multiply
340,659,416.80x = 510,989,125.20 × 187,226,495.20 - Step 4: Simplify right side
340,659,416.80x = 95,670,702,996,509,984 - Step 5: Solve for x
x = 95,670,702,996,509,984/340,659,416.80 - Step 6: Final answer
x = 280,839,742.80
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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.