Finding the Fourth Proportional to 163,130,431.20, 244,829,491.20 and 161,854,972.80
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Solution
The fourth proportional to 163,130,431.20, 244,829,491.20 and 161,854,972.80 is: 242,915,257.12
Step by Step Solution
- Step 1: Write the proportion equation
163,130,431.20 : 244,829,491.20 = 161,854,972.80 : x - Step 2: Convert to fraction form
163,130,431.20/244,829,491.20 = 161,854,972.80/x - Step 3: Cross multiply
163,130,431.20x = 244,829,491.20 × 161,854,972.80 - Step 4: Simplify right side
163,130,431.20x = 39,626,870,638,813,840 - Step 5: Solve for x
x = 39,626,870,638,813,840/163,130,431.20 - Step 6: Final answer
x = 242,915,257.12
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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.