Finding the Fourth Proportional to 3,478,285,312.80, 5,215,640,752.80 and 1,024,303,351.20
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Solution
The fourth proportional to 3,478,285,312.80, 5,215,640,752.80 and 1,024,303,351.20 is: 1,535,928,718.12
Step by Step Solution
- Step 1: Write the proportion equation
3,478,285,312.80 : 5,215,640,752.80 = 1,024,303,351.20 : x - Step 2: Convert to fraction form
3,478,285,312.80/5,215,640,752.80 = 1,024,303,351.20/x - Step 3: Cross multiply
3,478,285,312.80x = 5,215,640,752.80 × 1,024,303,351.20 - Step 4: Simplify right side
3,478,285,312.80x = 5,342,398,301,748,331,520 - Step 5: Solve for x
x = 5,342,398,301,748,331,520/3,478,285,312.80 - Step 6: Final answer
x = 1,535,928,718.12
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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.