Finding the Fourth Proportional to 5,157,389.70, 7,736,341.50 and 1,962,763.47
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Solution
The fourth proportional to 5,157,389.70, 7,736,341.50 and 1,962,763.47 is: 2,944,242.99
Step by Step Solution
- Step 1: Write the proportion equation
5,157,389.70 : 7,736,341.50 = 1,962,763.47 : x - Step 2: Convert to fraction form
5,157,389.70/7,736,341.50 = 1,962,763.47/x - Step 3: Cross multiply
5,157,389.70x = 7,736,341.50 × 1,962,763.47 - Step 4: Simplify right side
5,157,389.70x = 15,184,608,487,645.00 - Step 5: Solve for x
x = 15,184,608,487,645.00/5,157,389.70 - Step 6: Final answer
x = 2,944,242.99
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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.