Finding the Fourth Proportional to 103,513,630.70, 155,138,569.95 and 55,014,718.70
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Solution
The fourth proportional to 103,513,630.70, 155,138,569.95 and 55,014,718.70 is: 82,451,989.44
Step by Step Solution
- Step 1: Write the proportion equation
103,513,630.70 : 155,138,569.95 = 55,014,718.70 : x - Step 2: Convert to fraction form
103,513,630.70/155,138,569.95 = 55,014,718.70/x - Step 3: Cross multiply
103,513,630.70x = 155,138,569.95 × 55,014,718.70 - Step 4: Simplify right side
103,513,630.70x = 8,534,904,785,319,523 - Step 5: Solve for x
x = 8,534,904,785,319,523/103,513,630.70 - Step 6: Final answer
x = 82,451,989.44
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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.