Finding the Fourth Proportional to 474,901,907.40, 712,352,861.10 and 393,272,569.80
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Solution
The fourth proportional to 474,901,907.40, 712,352,861.10 and 393,272,569.80 is: 589,908,854.70
Step by Step Solution
- Step 1: Write the proportion equation
474,901,907.40 : 712,352,861.10 = 393,272,569.80 : x - Step 2: Convert to fraction form
474,901,907.40/712,352,861.10 = 393,272,569.80/x - Step 3: Cross multiply
474,901,907.40x = 712,352,861.10 × 393,272,569.80 - Step 4: Simplify right side
474,901,907.40x = 280,148,840,289,179,488 - Step 5: Solve for x
x = 280,148,840,289,179,488/474,901,907.40 - Step 6: Final answer
x = 589,908,854.70
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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.