Finding the Fourth Proportional to 26,425,026.20, 39,637,539.30 and 18,772,275.80
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Solution
The fourth proportional to 26,425,026.20, 39,637,539.30 and 18,772,275.80 is: 28,158,413.70
Step by Step Solution
- Step 1: Write the proportion equation
26,425,026.20 : 39,637,539.30 = 18,772,275.80 : x - Step 2: Convert to fraction form
26,425,026.20/39,637,539.30 = 18,772,275.80/x - Step 3: Cross multiply
26,425,026.20x = 39,637,539.30 × 18,772,275.80 - Step 4: Simplify right side
26,425,026.20x = 744,086,819,772,938.88 - Step 5: Solve for x
x = 744,086,819,772,938.88/26,425,026.20 - Step 6: Final answer
x = 28,158,413.70
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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.