Finding the Fourth Proportional to 280,482,458.04, 420,768,896 and 86,393,782.96
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Solution
The fourth proportional to 280,482,458.04, 420,768,896 and 86,393,782.96 is: 129,604,599.63
Step by Step Solution
- Step 1: Write the proportion equation
280,482,458.04 : 420,768,896 = 86,393,782.96 : x - Step 2: Convert to fraction form
280,482,458.04/420,768,896 = 86,393,782.96/x - Step 3: Cross multiply
280,482,458.04x = 420,768,896 × 86,393,782.96 - Step 4: Simplify right side
280,482,458.04x = 36,351,816,677,342,808 - Step 5: Solve for x
x = 36,351,816,677,342,808/280,482,458.04 - Step 6: Final answer
x = 129,604,599.63
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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.