Finding the Fourth Proportional to 1,223,246,937.16, 1,688,026,318.84 and 714,656,791
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Solution
The fourth proportional to 1,223,246,937.16, 1,688,026,318.84 and 714,656,791 is: 986,194,557.70
Step by Step Solution
- Step 1: Write the proportion equation
1,223,246,937.16 : 1,688,026,318.84 = 714,656,791 : x - Step 2: Convert to fraction form
1,223,246,937.16/1,688,026,318.84 = 714,656,791/x - Step 3: Cross multiply
1,223,246,937.16x = 1,688,026,318.84 × 714,656,791 - Step 4: Simplify right side
1,223,246,937.16x = 1,206,359,472,145,737,216 - Step 5: Solve for x
x = 1,206,359,472,145,737,216/1,223,246,937.16 - Step 6: Final answer
x = 986,194,557.70
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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.