Finding the Fourth Proportional to 28,808,452.19, 39,755,107.04 and 15,755,670.74
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Solution
The fourth proportional to 28,808,452.19, 39,755,107.04 and 15,755,670.74 is: 21,742,521.00
Step by Step Solution
- Step 1: Write the proportion equation
28,808,452.19 : 39,755,107.04 = 15,755,670.74 : x - Step 2: Convert to fraction form
28,808,452.19/39,755,107.04 = 15,755,670.74/x - Step 3: Cross multiply
28,808,452.19x = 39,755,107.04 × 15,755,670.74 - Step 4: Simplify right side
28,808,452.19x = 626,368,376,478,142 - Step 5: Solve for x
x = 626,368,376,478,142/28,808,452.19 - Step 6: Final answer
x = 21,742,521.00
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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.