Finding the Fourth Proportional to 79,046,077.80, 118,569,116.70 and 65,609,149.80
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Solution
The fourth proportional to 79,046,077.80, 118,569,116.70 and 65,609,149.80 is: 98,413,724.70
Step by Step Solution
- Step 1: Write the proportion equation
79,046,077.80 : 118,569,116.70 = 65,609,149.80 : x - Step 2: Convert to fraction form
79,046,077.80/118,569,116.70 = 65,609,149.80/x - Step 3: Cross multiply
79,046,077.80x = 118,569,116.70 × 65,609,149.80 - Step 4: Simplify right side
79,046,077.80x = 7,779,218,939,223,982 - Step 5: Solve for x
x = 7,779,218,939,223,982/79,046,077.80 - Step 6: Final answer
x = 98,413,724.70
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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.