Finding the Fourth Proportional to 75,542,886.40, 113,482,291.20 and 72,687,539.20
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Solution
The fourth proportional to 75,542,886.40, 113,482,291.20 and 72,687,539.20 is: 109,192,921.84
Step by Step Solution
- Step 1: Write the proportion equation
75,542,886.40 : 113,482,291.20 = 72,687,539.20 : x - Step 2: Convert to fraction form
75,542,886.40/113,482,291.20 = 72,687,539.20/x - Step 3: Cross multiply
75,542,886.40x = 113,482,291.20 × 72,687,539.20 - Step 4: Simplify right side
75,542,886.40x = 8,248,748,490,105,816 - Step 5: Solve for x
x = 8,248,748,490,105,816/75,542,886.40 - Step 6: Final answer
x = 109,192,921.84
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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.