Finding the Fourth Proportional to 6,218,488,744.74, 8,581,513,833.95 and 3,399,107,929.78
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Solution
The fourth proportional to 6,218,488,744.74, 8,581,513,833.95 and 3,399,107,929.78 is: 4,690,768,596.66
Step by Step Solution
- Step 1: Write the proportion equation
6,218,488,744.74 : 8,581,513,833.95 = 3,399,107,929.78 : x - Step 2: Convert to fraction form
6,218,488,744.74/8,581,513,833.95 = 3,399,107,929.78/x - Step 3: Cross multiply
6,218,488,744.74x = 8,581,513,833.95 × 3,399,107,929.78 - Step 4: Simplify right side
6,218,488,744.74x = 29,169,491,722,496,217,088 - Step 5: Solve for x
x = 29,169,491,722,496,217,088/6,218,488,744.74 - Step 6: Final answer
x = 4,690,768,596.66
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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.