Finding the Fourth Proportional to 1,347,688,785.66, 2,021,574,361.26 and 462,361,726.26
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Solution
The fourth proportional to 1,347,688,785.66, 2,021,574,361.26 and 462,361,726.26 is: 693,556,718.28
Step by Step Solution
- Step 1: Write the proportion equation
1,347,688,785.66 : 2,021,574,361.26 = 462,361,726.26 : x - Step 2: Convert to fraction form
1,347,688,785.66/2,021,574,361.26 = 462,361,726.26/x - Step 3: Cross multiply
1,347,688,785.66x = 2,021,574,361.26 × 462,361,726.26 - Step 4: Simplify right side
1,347,688,785.66x = 934,698,611,436,887,424 - Step 5: Solve for x
x = 934,698,611,436,887,424/1,347,688,785.66 - Step 6: Final answer
x = 693,556,718.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.