Finding the Fourth Proportional to 384,174,776.88, 530,162,460.36 and 207,962,724.24
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Solution
The fourth proportional to 384,174,776.88, 530,162,460.36 and 207,962,724.24 is: 286,989,245.99
Step by Step Solution
- Step 1: Write the proportion equation
384,174,776.88 : 530,162,460.36 = 207,962,724.24 : x - Step 2: Convert to fraction form
384,174,776.88/530,162,460.36 = 207,962,724.24/x - Step 3: Cross multiply
384,174,776.88x = 530,162,460.36 × 207,962,724.24 - Step 4: Simplify right side
384,174,776.88x = 110,254,029,546,246,624 - Step 5: Solve for x
x = 110,254,029,546,246,624/384,174,776.88 - Step 6: Final answer
x = 286,989,245.99
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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.