Finding the Fourth Proportional to 418,028,663.22, 576,344,038.68 and 342,396,366.14
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Solution
The fourth proportional to 418,028,663.22, 576,344,038.68 and 342,396,366.14 is: 472,068,357.63
Step by Step Solution
- Step 1: Write the proportion equation
418,028,663.22 : 576,344,038.68 = 342,396,366.14 : x - Step 2: Convert to fraction form
418,028,663.22/576,344,038.68 = 342,396,366.14/x - Step 3: Cross multiply
418,028,663.22x = 576,344,038.68 × 342,396,366.14 - Step 4: Simplify right side
418,028,663.22x = 197,338,104,490,483,584 - Step 5: Solve for x
x = 197,338,104,490,483,584/418,028,663.22 - Step 6: Final answer
x = 472,068,357.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.