Finding the Fourth Proportional to 1,669,018,874.88, 2,303,310,822.80 and 916,363,774.84
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Solution
The fourth proportional to 1,669,018,874.88, 2,303,310,822.80 and 916,363,774.84 is: 1,264,617,573.82
Step by Step Solution
- Step 1: Write the proportion equation
1,669,018,874.88 : 2,303,310,822.80 = 916,363,774.84 : x - Step 2: Convert to fraction form
1,669,018,874.88/2,303,310,822.80 = 916,363,774.84/x - Step 3: Cross multiply
1,669,018,874.88x = 2,303,310,822.80 × 916,363,774.84 - Step 4: Simplify right side
1,669,018,874.88x = 2,110,670,600,210,834,688 - Step 5: Solve for x
x = 2,110,670,600,210,834,688/1,669,018,874.88 - Step 6: Final answer
x = 1,264,617,573.82
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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.