Finding the Fourth Proportional to 20,430,901.91, 30,637,130.40 and 5,854,487.37
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Solution
The fourth proportional to 20,430,901.91, 30,637,130.40 and 5,854,487.37 is: 8,779,088.35
Step by Step Solution
- Step 1: Write the proportion equation
20,430,901.91 : 30,637,130.40 = 5,854,487.37 : x - Step 2: Convert to fraction form
20,430,901.91/30,637,130.40 = 5,854,487.37/x - Step 3: Cross multiply
20,430,901.91x = 30,637,130.40 × 5,854,487.37 - Step 4: Simplify right side
20,430,901.91x = 179,364,692,979,843.03 - Step 5: Solve for x
x = 179,364,692,979,843.03/20,430,901.91 - Step 6: Final answer
x = 8,779,088.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.