Finding the Fourth Proportional to 157,122,515.68, 235,683,791.84 and 47,948,258.88
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Solution
The fourth proportional to 157,122,515.68, 235,683,791.84 and 47,948,258.88 is: 71,922,393.91
Step by Step Solution
- Step 1: Write the proportion equation
157,122,515.68 : 235,683,791.84 = 47,948,258.88 : x - Step 2: Convert to fraction form
157,122,515.68/235,683,791.84 = 47,948,258.88/x - Step 3: Cross multiply
157,122,515.68x = 235,683,791.84 × 47,948,258.88 - Step 4: Simplify right side
157,122,515.68x = 11,300,627,464,964,352 - Step 5: Solve for x
x = 11,300,627,464,964,352/157,122,515.68 - Step 6: Final answer
x = 71,922,393.91
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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.