Finding the Fourth Proportional to 578,014,430.65, 797,659,913.62 and 313,696,423.68
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Solution
The fourth proportional to 578,014,430.65, 797,659,913.62 and 313,696,423.68 is: 432,901,064.31
Step by Step Solution
- Step 1: Write the proportion equation
578,014,430.65 : 797,659,913.62 = 313,696,423.68 : x - Step 2: Convert to fraction form
578,014,430.65/797,659,913.62 = 313,696,423.68/x - Step 3: Cross multiply
578,014,430.65x = 797,659,913.62 × 313,696,423.68 - Step 4: Simplify right side
578,014,430.65x = 250,223,062,215,491,744 - Step 5: Solve for x
x = 250,223,062,215,491,744/578,014,430.65 - Step 6: Final answer
x = 432,901,064.31
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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.