Finding the Fourth Proportional to 702,113,318.64, 968,919,616.47 and 388,840,965.12
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Solution
The fourth proportional to 702,113,318.64, 968,919,616.47 and 388,840,965.12 is: 536,602,324.42
Step by Step Solution
- Step 1: Write the proportion equation
702,113,318.64 : 968,919,616.47 = 388,840,965.12 : x - Step 2: Convert to fraction form
702,113,318.64/968,919,616.47 = 388,840,965.12/x - Step 3: Cross multiply
702,113,318.64x = 968,919,616.47 × 388,840,965.12 - Step 4: Simplify right side
702,113,318.64x = 376,755,638,791,895,040 - Step 5: Solve for x
x = 376,755,638,791,895,040/702,113,318.64 - Step 6: Final answer
x = 536,602,324.42
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1.5x scale
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.