Finding the Fourth Proportional to 31,478,970.42, 47,232,189.99 and 11,023,371.63
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Solution
The fourth proportional to 31,478,970.42, 47,232,189.99 and 11,023,371.63 is: 16,539,866.97
Step by Step Solution
- Step 1: Write the proportion equation
31,478,970.42 : 47,232,189.99 = 11,023,371.63 : x - Step 2: Convert to fraction form
31,478,970.42/47,232,189.99 = 11,023,371.63/x - Step 3: Cross multiply
31,478,970.42x = 47,232,189.99 × 11,023,371.63 - Step 4: Simplify right side
31,478,970.42x = 520,657,983,158,536.06 - Step 5: Solve for x
x = 520,657,983,158,536.06/31,478,970.42 - Step 6: Final answer
x = 16,539,866.97
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.