Finding the Fourth Proportional to 217,258,564.68, 299,822,501.40 and 118,145,108.70
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Solution
The fourth proportional to 217,258,564.68, 299,822,501.40 and 118,145,108.70 is: 163,043,339.95
Step by Step Solution
- Step 1: Write the proportion equation
217,258,564.68 : 299,822,501.40 = 118,145,108.70 : x - Step 2: Convert to fraction form
217,258,564.68/299,822,501.40 = 118,145,108.70/x - Step 3: Cross multiply
217,258,564.68x = 299,822,501.40 × 118,145,108.70 - Step 4: Simplify right side
217,258,564.68x = 35,422,562,018,608,900 - Step 5: Solve for x
x = 35,422,562,018,608,900/217,258,564.68 - Step 6: Final answer
x = 163,043,339.95
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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.