Finding the Fourth Proportional to 5,390,776.13, 7,439,374.64 and 2,943,484.17
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Solution
The fourth proportional to 5,390,776.13, 7,439,374.64 and 2,943,484.17 is: 4,062,064.72
Step by Step Solution
- Step 1: Write the proportion equation
5,390,776.13 : 7,439,374.64 = 2,943,484.17 : x - Step 2: Convert to fraction form
5,390,776.13/7,439,374.64 = 2,943,484.17/x - Step 3: Cross multiply
5,390,776.13x = 7,439,374.64 × 2,943,484.17 - Step 4: Simplify right side
5,390,776.13x = 21,897,681,492,289.89 - Step 5: Solve for x
x = 21,897,681,492,289.89/5,390,776.13 - Step 6: Final answer
x = 4,062,064.72
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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.