Finding the Fourth Proportional to 220,786,862.40, 304,687,885.26 and 121,671,166.08
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Solution
The fourth proportional to 220,786,862.40, 304,687,885.26 and 121,671,166.08 is: 167,907,319.70
Step by Step Solution
- Step 1: Write the proportion equation
220,786,862.40 : 304,687,885.26 = 121,671,166.08 : x - Step 2: Convert to fraction form
220,786,862.40/304,687,885.26 = 121,671,166.08/x - Step 3: Cross multiply
220,786,862.40x = 304,687,885.26 × 121,671,166.08 - Step 4: Simplify right side
220,786,862.40x = 37,071,730,290,033,440 - Step 5: Solve for x
x = 37,071,730,290,033,440/220,786,862.40 - Step 6: Final answer
x = 167,907,319.70
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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.