Finding the Fourth Proportional to 28,791,070.04, 39,731,679.64 and 15,738,382.14
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Solution
The fourth proportional to 28,791,070.04, 39,731,679.64 and 15,738,382.14 is: 21,718,968.99
Step by Step Solution
- Step 1: Write the proportion equation
28,791,070.04 : 39,731,679.64 = 15,738,382.14 : x - Step 2: Convert to fraction form
28,791,070.04/39,731,679.64 = 15,738,382.14/x - Step 3: Cross multiply
28,791,070.04x = 39,731,679.64 × 15,738,382.14 - Step 4: Simplify right side
28,791,070.04x = 625,312,357,238,377.62 - Step 5: Solve for x
x = 625,312,357,238,377.62/28,791,070.04 - Step 6: Final answer
x = 21,718,968.99
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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.