Finding the Fourth Proportional to 7,711,875.74, 10,636,183.11 and 6,779,590.19
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Solution
The fourth proportional to 7,711,875.74, 10,636,183.11 and 6,779,590.19 is: 9,350,379.21
Step by Step Solution
- Step 1: Write the proportion equation
7,711,875.74 : 10,636,183.11 = 6,779,590.19 : x - Step 2: Convert to fraction form
7,711,875.74/10,636,183.11 = 6,779,590.19/x - Step 3: Cross multiply
7,711,875.74x = 10,636,183.11 × 6,779,590.19 - Step 4: Simplify right side
7,711,875.74x = 72,108,962,650,996.97 - Step 5: Solve for x
x = 72,108,962,650,996.97/7,711,875.74 - Step 6: Final answer
x = 9,350,379.21
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.