Finding the Fourth Proportional to 7,921,125.64, 10,929,280.08 and 4,483,366.84
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Solution
The fourth proportional to 7,921,125.64, 10,929,280.08 and 4,483,366.84 is: 6,185,985.95
Step by Step Solution
- Step 1: Write the proportion equation
7,921,125.64 : 10,929,280.08 = 4,483,366.84 : x - Step 2: Convert to fraction form
7,921,125.64/10,929,280.08 = 4,483,366.84/x - Step 3: Cross multiply
7,921,125.64x = 10,929,280.08 × 4,483,366.84 - Step 4: Simplify right side
7,921,125.64x = 48,999,971,895,744.55 - Step 5: Solve for x
x = 48,999,971,895,744.55/7,921,125.64 - Step 6: Final answer
x = 6,185,985.95
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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.