Finding the Fourth Proportional to 19,748,721.24, 27,242,260.74 and 11,487,854.16
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Solution
The fourth proportional to 19,748,721.24, 27,242,260.74 and 11,487,854.16 is: 15,846,854.82
Step by Step Solution
- Step 1: Write the proportion equation
19,748,721.24 : 27,242,260.74 = 11,487,854.16 : x - Step 2: Convert to fraction form
19,748,721.24/27,242,260.74 = 11,487,854.16/x - Step 3: Cross multiply
19,748,721.24x = 27,242,260.74 × 11,487,854.16 - Step 4: Simplify right side
19,748,721.24x = 312,955,118,369,813.69 - Step 5: Solve for x
x = 312,955,118,369,813.69/19,748,721.24 - Step 6: Final answer
x = 15,846,854.82
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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.