Finding the Fourth Proportional to 722,308,695.85, 996,847,476.20 and 409,098,628.09
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Solution
The fourth proportional to 722,308,695.85, 996,847,476.20 and 409,098,628.09 is: 564,590,925.28
Step by Step Solution
- Step 1: Write the proportion equation
722,308,695.85 : 996,847,476.20 = 409,098,628.09 : x - Step 2: Convert to fraction form
722,308,695.85/996,847,476.20 = 409,098,628.09/x - Step 3: Cross multiply
722,308,695.85x = 996,847,476.20 × 409,098,628.09 - Step 4: Simplify right side
722,308,695.85x = 407,808,934,928,398,912 - Step 5: Solve for x
x = 407,808,934,928,398,912/722,308,695.85 - Step 6: Final answer
x = 564,590,925.28
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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.