Finding the Fourth Proportional to 1,563,551,285.10, 2,157,216,940.35 and 903,260,643.18
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Solution
The fourth proportional to 1,563,551,285.10, 2,157,216,940.35 and 903,260,643.18 is: 1,246,220,178.12
Step by Step Solution
- Step 1: Write the proportion equation
1,563,551,285.10 : 2,157,216,940.35 = 903,260,643.18 : x - Step 2: Convert to fraction form
1,563,551,285.10/2,157,216,940.35 = 903,260,643.18/x - Step 3: Cross multiply
1,563,551,285.10x = 2,157,216,940.35 × 903,260,643.18 - Step 4: Simplify right side
1,563,551,285.10x = 1,948,529,161,019,332,608 - Step 5: Solve for x
x = 1,948,529,161,019,332,608/1,563,551,285.10 - Step 6: Final answer
x = 1,246,220,178.12
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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.