Finding the Fourth Proportional to 217,258,566.18, 299,822,503.47 and 118,145,110.20
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Solution
The fourth proportional to 217,258,566.18, 299,822,503.47 and 118,145,110.20 is: 163,043,342.02
Step by Step Solution
- Step 1: Write the proportion equation
217,258,566.18 : 299,822,503.47 = 118,145,110.20 : x - Step 2: Convert to fraction form
217,258,566.18/299,822,503.47 = 118,145,110.20/x - Step 3: Cross multiply
217,258,566.18x = 299,822,503.47 × 118,145,110.20 - Step 4: Simplify right side
217,258,566.18x = 35,422,562,712,903,036 - Step 5: Solve for x
x = 35,422,562,712,903,036/217,258,566.18 - Step 6: Final answer
x = 163,043,342.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.