Finding the Fourth Proportional to 81,688,515.21, 112,730,168.75 and 44,518,804.29
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Solution
The fourth proportional to 81,688,515.21, 112,730,168.75 and 44,518,804.29 is: 61,435,959.60
Step by Step Solution
- Step 1: Write the proportion equation
81,688,515.21 : 112,730,168.75 = 44,518,804.29 : x - Step 2: Convert to fraction form
81,688,515.21/112,730,168.75 = 44,518,804.29/x - Step 3: Cross multiply
81,688,515.21x = 112,730,168.75 × 44,518,804.29 - Step 4: Simplify right side
81,688,515.21x = 5,018,612,319,937,330 - Step 5: Solve for x
x = 5,018,612,319,937,330/81,688,515.21 - Step 6: Final answer
x = 61,435,959.60
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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.