Finding the Fourth Proportional to 77,142,568.16, 115,706,766.08 and 26,025,029.84
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Solution
The fourth proportional to 77,142,568.16, 115,706,766.08 and 26,025,029.84 is: 39,035,154.15
Step by Step Solution
- Step 1: Write the proportion equation
77,142,568.16 : 115,706,766.08 = 26,025,029.84 : x - Step 2: Convert to fraction form
77,142,568.16/115,706,766.08 = 26,025,029.84/x - Step 3: Cross multiply
77,142,568.16x = 115,706,766.08 × 26,025,029.84 - Step 4: Simplify right side
77,142,568.16x = 3,011,272,039,921,900 - Step 5: Solve for x
x = 3,011,272,039,921,900/77,142,568.16 - Step 6: Final answer
x = 39,035,154.15
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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.