Finding the Fourth Proportional to 163,987,752.80, 245,869,654.80 and 77,767,464.80
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Solution
The fourth proportional to 163,987,752.80, 245,869,654.80 and 77,767,464.80 is: 116,598,095.89
Step by Step Solution
- Step 1: Write the proportion equation
163,987,752.80 : 245,869,654.80 = 77,767,464.80 : x - Step 2: Convert to fraction form
163,987,752.80/245,869,654.80 = 77,767,464.80/x - Step 3: Cross multiply
163,987,752.80x = 245,869,654.80 × 77,767,464.80 - Step 4: Simplify right side
163,987,752.80x = 19,120,659,725,047,152 - Step 5: Solve for x
x = 19,120,659,725,047,152/163,987,752.80 - Step 6: Final answer
x = 116,598,095.89
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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.