Finding the Fourth Proportional to 15,922,966.95, 21,973,579.65 and 9,047,448.99
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Solution
The fourth proportional to 15,922,966.95, 21,973,579.65 and 9,047,448.99 is: 12,485,414.41
Step by Step Solution
- Step 1: Write the proportion equation
15,922,966.95 : 21,973,579.65 = 9,047,448.99 : x - Step 2: Convert to fraction form
15,922,966.95/21,973,579.65 = 9,047,448.99/x - Step 3: Cross multiply
15,922,966.95x = 21,973,579.65 × 9,047,448.99 - Step 4: Simplify right side
15,922,966.95x = 198,804,841,011,077.03 - Step 5: Solve for x
x = 198,804,841,011,077.03/15,922,966.95 - Step 6: Final answer
x = 12,485,414.41
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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.