Finding the Fourth Proportional to 554,699,474.99, 765,509,337.93 and 307,180,829.24
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Solution
The fourth proportional to 554,699,474.99, 765,509,337.93 and 307,180,829.24 is: 423,922,869.62
Step by Step Solution
- Step 1: Write the proportion equation
554,699,474.99 : 765,509,337.93 = 307,180,829.24 : x - Step 2: Convert to fraction form
554,699,474.99/765,509,337.93 = 307,180,829.24/x - Step 3: Cross multiply
554,699,474.99x = 765,509,337.93 × 307,180,829.24 - Step 4: Simplify right side
554,699,474.99x = 235,149,793,216,300,768 - Step 5: Solve for x
x = 235,149,793,216,300,768/554,699,474.99 - Step 6: Final answer
x = 423,922,869.62
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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.