Finding the Fourth Proportional to 553,042,629.62, 828,984,478.71 and 257,694,250.13
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Solution
The fourth proportional to 553,042,629.62, 828,984,478.71 and 257,694,250.13 is: 386,271,368.91
Step by Step Solution
- Step 1: Write the proportion equation
553,042,629.62 : 828,984,478.71 = 257,694,250.13 : x - Step 2: Convert to fraction form
553,042,629.62/828,984,478.71 = 257,694,250.13/x - Step 3: Cross multiply
553,042,629.62x = 828,984,478.71 × 257,694,250.13 - Step 4: Simplify right side
553,042,629.62x = 213,624,533,610,582,400 - Step 5: Solve for x
x = 213,624,533,610,582,400/553,042,629.62 - Step 6: Final answer
x = 386,271,368.91
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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.