Finding the Fourth Proportional to 26,376,657.40, 39,564,986.10 and 19,574,212.60
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Solution
The fourth proportional to 26,376,657.40, 39,564,986.10 and 19,574,212.60 is: 29,361,318.90
Step by Step Solution
- Step 1: Write the proportion equation
26,376,657.40 : 39,564,986.10 = 19,574,212.60 : x - Step 2: Convert to fraction form
26,376,657.40/39,564,986.10 = 19,574,212.60/x - Step 3: Cross multiply
26,376,657.40x = 39,564,986.10 × 19,574,212.60 - Step 4: Simplify right side
26,376,657.40x = 774,453,449,437,445 - Step 5: Solve for x
x = 774,453,449,437,445/26,376,657.40 - Step 6: Final answer
x = 29,361,318.90
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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.