Finding the Fourth Proportional to 620,970,818, 856,924,707.12 and 342,506,361.20
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Solution
The fourth proportional to 620,970,818, 856,924,707.12 and 342,506,361.20 is: 472,650,492.99
Step by Step Solution
- Step 1: Write the proportion equation
620,970,818 : 856,924,707.12 = 342,506,361.20 : x - Step 2: Convert to fraction form
620,970,818/856,924,707.12 = 342,506,361.20/x - Step 3: Cross multiply
620,970,818x = 856,924,707.12 × 342,506,361.20 - Step 4: Simplify right side
620,970,818x = 293,502,163,258,046,912 - Step 5: Solve for x
x = 293,502,163,258,046,912/620,970,818 - Step 6: Final answer
x = 472,650,492.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.