Finding the Fourth Proportional to 1,124,104,919.15, 1,551,427,051.16 and 647,704,046.09
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Solution
The fourth proportional to 1,124,104,919.15, 1,551,427,051.16 and 647,704,046.09 is: 893,925,078.64
Step by Step Solution
- Step 1: Write the proportion equation
1,124,104,919.15 : 1,551,427,051.16 = 647,704,046.09 : x - Step 2: Convert to fraction form
1,124,104,919.15/1,551,427,051.16 = 647,704,046.09/x - Step 3: Cross multiply
1,124,104,919.15x = 1,551,427,051.16 × 647,704,046.09 - Step 4: Simplify right side
1,124,104,919.15x = 1,004,865,578,249,809,536 - Step 5: Solve for x
x = 1,004,865,578,249,809,536/1,124,104,919.15 - Step 6: Final answer
x = 893,925,078.64
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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.