Finding the Fourth Proportional to 378,878,809.96, 522,852,547.62 and 213,867,804.52
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Solution
The fourth proportional to 378,878,809.96, 522,852,547.62 and 213,867,804.52 is: 295,137,451.63
Step by Step Solution
- Step 1: Write the proportion equation
378,878,809.96 : 522,852,547.62 = 213,867,804.52 : x - Step 2: Convert to fraction form
378,878,809.96/522,852,547.62 = 213,867,804.52/x - Step 3: Cross multiply
378,878,809.96x = 522,852,547.62 × 213,867,804.52 - Step 4: Simplify right side
378,878,809.96x = 111,821,326,447,178,160 - Step 5: Solve for x
x = 111,821,326,447,178,160/378,878,809.96 - Step 6: Final answer
x = 295,137,451.63
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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.