Finding the Fourth Proportional to 5,638,656.78, 7,781,353.29 and 3,060,337.14
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Solution
The fourth proportional to 5,638,656.78, 7,781,353.29 and 3,060,337.14 is: 4,223,269.02
Step by Step Solution
- Step 1: Write the proportion equation
5,638,656.78 : 7,781,353.29 = 3,060,337.14 : x - Step 2: Convert to fraction form
5,638,656.78/7,781,353.29 = 3,060,337.14/x - Step 3: Cross multiply
5,638,656.78x = 7,781,353.29 × 3,060,337.14 - Step 4: Simplify right side
5,638,656.78x = 23,813,564,472,848.19 - Step 5: Solve for x
x = 23,813,564,472,848.19/5,638,656.78 - Step 6: Final answer
x = 4,223,269.02
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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.