Finding the Fourth Proportional to 317,660,627.70, 476,490,941.55 and 145,473,743.70
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Solution
The fourth proportional to 317,660,627.70, 476,490,941.55 and 145,473,743.70 is: 218,210,615.55
Step by Step Solution
- Step 1: Write the proportion equation
317,660,627.70 : 476,490,941.55 = 145,473,743.70 : x - Step 2: Convert to fraction form
317,660,627.70/476,490,941.55 = 145,473,743.70/x - Step 3: Cross multiply
317,660,627.70x = 476,490,941.55 × 145,473,743.70 - Step 4: Simplify right side
317,660,627.70x = 69,316,921,106,416,376 - Step 5: Solve for x
x = 69,316,921,106,416,376/317,660,627.70 - Step 6: Final answer
x = 218,210,615.55
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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.