Finding the Fourth Proportional to 28,708,158.84, 39,617,321.86 and 16,318,328.16
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Solution
The fourth proportional to 28,708,158.84, 39,617,321.86 and 16,318,328.16 is: 22,519,328.48
Step by Step Solution
- Step 1: Write the proportion equation
28,708,158.84 : 39,617,321.86 = 16,318,328.16 : x - Step 2: Convert to fraction form
28,708,158.84/39,617,321.86 = 16,318,328.16/x - Step 3: Cross multiply
28,708,158.84x = 39,617,321.86 × 16,318,328.16 - Step 4: Simplify right side
28,708,158.84x = 646,488,458,931,821.62 - Step 5: Solve for x
x = 646,488,458,931,821.62/28,708,158.84 - Step 6: Final answer
x = 22,519,328.48
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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.