Finding the Fourth Proportional to 315,489,070.13, 435,366,895.95 and 176,260,877.55
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Solution
The fourth proportional to 315,489,070.13, 435,366,895.95 and 176,260,877.55 is: 243,235,529.86
Step by Step Solution
- Step 1: Write the proportion equation
315,489,070.13 : 435,366,895.95 = 176,260,877.55 : x - Step 2: Convert to fraction form
315,489,070.13/435,366,895.95 = 176,260,877.55/x - Step 3: Cross multiply
315,489,070.13x = 435,366,895.95 × 176,260,877.55 - Step 4: Simplify right side
315,489,070.13x = 76,738,151,136,366,544 - Step 5: Solve for x
x = 76,738,151,136,366,544/315,489,070.13 - Step 6: Final answer
x = 243,235,529.86
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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.