Finding the Fourth Proportional to 205,056,235.20, 307,584,352.80 and 197,889,873.60
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Solution
The fourth proportional to 205,056,235.20, 307,584,352.80 and 197,889,873.60 is: 296,834,810.40
Step by Step Solution
- Step 1: Write the proportion equation
205,056,235.20 : 307,584,352.80 = 197,889,873.60 : x - Step 2: Convert to fraction form
205,056,235.20/307,584,352.80 = 197,889,873.60/x - Step 3: Cross multiply
205,056,235.20x = 307,584,352.80 × 197,889,873.60 - Step 4: Simplify right side
205,056,235.20x = 60,867,828,696,929,808 - Step 5: Solve for x
x = 60,867,828,696,929,808/205,056,235.20 - Step 6: Final answer
x = 296,834,810.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.