Finding the Fourth Proportional to 139,692,908.88, 192,776,392.26 and 76,112,947.08
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Solution
The fourth proportional to 139,692,908.88, 192,776,392.26 and 76,112,947.08 is: 105,035,963.96
Step by Step Solution
- Step 1: Write the proportion equation
139,692,908.88 : 192,776,392.26 = 76,112,947.08 : x - Step 2: Convert to fraction form
139,692,908.88/192,776,392.26 = 76,112,947.08/x - Step 3: Cross multiply
139,692,908.88x = 192,776,392.26 × 76,112,947.08 - Step 4: Simplify right side
139,692,908.88x = 14,672,779,342,358,700 - Step 5: Solve for x
x = 14,672,779,342,358,700/139,692,908.88 - Step 6: Final answer
x = 105,035,963.96
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.