Finding the Fourth Proportional to 163,430,629.06, 245,218,147.26 and 85,688,946.40
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Solution
The fourth proportional to 163,430,629.06, 245,218,147.26 and 85,688,946.40 is: 128,571,276.99
Step by Step Solution
- Step 1: Write the proportion equation
163,430,629.06 : 245,218,147.26 = 85,688,946.40 : x - Step 2: Convert to fraction form
163,430,629.06/245,218,147.26 = 85,688,946.40/x - Step 3: Cross multiply
163,430,629.06x = 245,218,147.26 × 85,688,946.40 - Step 4: Simplify right side
163,430,629.06x = 21,012,484,676,869,448 - Step 5: Solve for x
x = 21,012,484,676,869,448/163,430,629.06 - Step 6: Final answer
x = 128,571,276.99
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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.