Finding the Fourth Proportional to 278,326,282.05, 384,079,746.67 and 154,574,930.79
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Solution
The fourth proportional to 278,326,282.05, 384,079,746.67 and 154,574,930.79 is: 213,307,560.54
Step by Step Solution
- Step 1: Write the proportion equation
278,326,282.05 : 384,079,746.67 = 154,574,930.79 : x - Step 2: Convert to fraction form
278,326,282.05/384,079,746.67 = 154,574,930.79/x - Step 3: Cross multiply
278,326,282.05x = 384,079,746.67 × 154,574,930.79 - Step 4: Simplify right side
278,326,282.05x = 59,369,100,259,355,984 - Step 5: Solve for x
x = 59,369,100,259,355,984/278,326,282.05 - Step 6: Final answer
x = 213,307,560.54
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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.