Finding the Fourth Proportional to 28,459,012.73, 39,273,428.99 and 15,406,262.09
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Solution
The fourth proportional to 28,459,012.73, 39,273,428.99 and 15,406,262.09 is: 21,260,637.04
Step by Step Solution
- Step 1: Write the proportion equation
28,459,012.73 : 39,273,428.99 = 15,406,262.09 : x - Step 2: Convert to fraction form
28,459,012.73/39,273,428.99 = 15,406,262.09/x - Step 3: Cross multiply
28,459,012.73x = 39,273,428.99 × 15,406,262.09 - Step 4: Simplify right side
28,459,012.73x = 605,056,740,035,092.50 - Step 5: Solve for x
x = 605,056,740,035,092.50/28,459,012.73 - Step 6: Final answer
x = 21,260,637.04
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1.5x scale
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.