Finding the Fourth Proportional to 68,426,221.68, 94,432,700.76 and 39,063,502.32
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Solution
The fourth proportional to 68,426,221.68, 94,432,700.76 and 39,063,502.32 is: 53,910,210.66
Step by Step Solution
- Step 1: Write the proportion equation
68,426,221.68 : 94,432,700.76 = 39,063,502.32 : x - Step 2: Convert to fraction form
68,426,221.68/94,432,700.76 = 39,063,502.32/x - Step 3: Cross multiply
68,426,221.68x = 94,432,700.76 × 39,063,502.32 - Step 4: Simplify right side
68,426,221.68x = 3,688,872,025,222,126 - Step 5: Solve for x
x = 3,688,872,025,222,126/68,426,221.68 - Step 6: Final answer
x = 53,910,210.66
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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.