Finding the Fourth Proportional to 649,941,688.18, 896,684,149.43 and 427,043,420.92
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Solution
The fourth proportional to 649,941,688.18, 896,684,149.43 and 427,043,420.92 is: 589,165,264.55
Step by Step Solution
- Step 1: Write the proportion equation
649,941,688.18 : 896,684,149.43 = 427,043,420.92 : x - Step 2: Convert to fraction form
649,941,688.18/896,684,149.43 = 427,043,420.92/x - Step 3: Cross multiply
649,941,688.18x = 896,684,149.43 × 427,043,420.92 - Step 4: Simplify right side
649,941,688.18x = 382,923,066,652,844,224 - Step 5: Solve for x
x = 382,923,066,652,844,224/649,941,688.18 - Step 6: Final answer
x = 589,165,264.55
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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.