Finding the Fourth Proportional to 19,478,874.93, 26,881,638.66 and 10,776,905.82
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Solution
The fourth proportional to 19,478,874.93, 26,881,638.66 and 10,776,905.82 is: 14,872,567.80
Step by Step Solution
- Step 1: Write the proportion equation
19,478,874.93 : 26,881,638.66 = 10,776,905.82 : x - Step 2: Convert to fraction form
19,478,874.93/26,881,638.66 = 10,776,905.82/x - Step 3: Cross multiply
19,478,874.93x = 26,881,638.66 × 10,776,905.82 - Step 4: Simplify right side
19,478,874.93x = 289,700,888,126,091 - Step 5: Solve for x
x = 289,700,888,126,091/19,478,874.93 - Step 6: Final answer
x = 14,872,567.80
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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.