Finding the Fourth Proportional to 155,445,615.30, 233,317,722.15 and 78,855,125.70
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Solution
The fourth proportional to 155,445,615.30, 233,317,722.15 and 78,855,125.70 is: 118,358,425.70
Step by Step Solution
- Step 1: Write the proportion equation
155,445,615.30 : 233,317,722.15 = 78,855,125.70 : x - Step 2: Convert to fraction form
155,445,615.30/233,317,722.15 = 78,855,125.70/x - Step 3: Cross multiply
155,445,615.30x = 233,317,722.15 × 78,855,125.70 - Step 4: Simplify right side
155,445,615.30x = 18,398,298,308,175,924 - Step 5: Solve for x
x = 18,398,298,308,175,924/155,445,615.30 - Step 6: Final answer
x = 118,358,425.70
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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.