Finding the Fourth Proportional to 646,274,908.64, 968,019,950.63 and 437,869,877.63
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Solution
The fourth proportional to 646,274,908.64, 968,019,950.63 and 437,869,877.63 is: 655,861,416.95
Step by Step Solution
- Step 1: Write the proportion equation
646,274,908.64 : 968,019,950.63 = 437,869,877.63 : x - Step 2: Convert to fraction form
646,274,908.64/968,019,950.63 = 437,869,877.63/x - Step 3: Cross multiply
646,274,908.64x = 968,019,950.63 × 437,869,877.63 - Step 4: Simplify right side
646,274,908.64x = 423,866,777,322,011,328 - Step 5: Solve for x
x = 423,866,777,322,011,328/646,274,908.64 - Step 6: Final answer
x = 655,861,416.95
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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.