Finding the Fourth Proportional to 286,021,252.19, 429,035,864.09 and 81,549,327.44
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Solution
The fourth proportional to 286,021,252.19, 429,035,864.09 and 81,549,327.44 is: 122,325,127.57
Step by Step Solution
- Step 1: Write the proportion equation
286,021,252.19 : 429,035,864.09 = 81,549,327.44 : x - Step 2: Convert to fraction form
286,021,252.19/429,035,864.09 = 81,549,327.44/x - Step 3: Cross multiply
286,021,252.19x = 429,035,864.09 × 81,549,327.44 - Step 4: Simplify right side
286,021,252.19x = 34,987,586,161,625,820 - Step 5: Solve for x
x = 34,987,586,161,625,820/286,021,252.19 - Step 6: Final answer
x = 122,325,127.57
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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.