Finding the Fourth Proportional to 76,636,770.79, 115,005,927.62 and 42,117,278.97
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Solution
The fourth proportional to 76,636,770.79, 115,005,927.62 and 42,117,278.97 is: 63,203,820.92
Step by Step Solution
- Step 1: Write the proportion equation
76,636,770.79 : 115,005,927.62 = 42,117,278.97 : x - Step 2: Convert to fraction form
76,636,770.79/115,005,927.62 = 42,117,278.97/x - Step 3: Cross multiply
76,636,770.79x = 115,005,927.62 × 42,117,278.97 - Step 4: Simplify right side
76,636,770.79x = 4,843,736,736,775,168 - Step 5: Solve for x
x = 4,843,736,736,775,168/76,636,770.79 - Step 6: Final answer
x = 63,203,820.92
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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.