Finding the Fourth Proportional to 128,750,424.17, 177,680,257.76 and 73,756,909.49
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Solution
The fourth proportional to 128,750,424.17, 177,680,257.76 and 73,756,909.49 is: 101,787,211.76
Step by Step Solution
- Step 1: Write the proportion equation
128,750,424.17 : 177,680,257.76 = 73,756,909.49 : x - Step 2: Convert to fraction form
128,750,424.17/177,680,257.76 = 73,756,909.49/x - Step 3: Cross multiply
128,750,424.17x = 177,680,257.76 × 73,756,909.49 - Step 4: Simplify right side
128,750,424.17x = 13,105,146,689,060,180 - Step 5: Solve for x
x = 13,105,146,689,060,180/128,750,424.17 - Step 6: Final answer
x = 101,787,211.76
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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.