Finding the Fourth Proportional to 278,886,948.26, 418,381,488.84 and 115,035,319.04
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Solution
The fourth proportional to 278,886,948.26, 418,381,488.84 and 115,035,319.04 is: 172,574,042.45
Step by Step Solution
- Step 1: Write the proportion equation
278,886,948.26 : 418,381,488.84 = 115,035,319.04 : x - Step 2: Convert to fraction form
278,886,948.26/418,381,488.84 = 115,035,319.04/x - Step 3: Cross multiply
278,886,948.26x = 418,381,488.84 × 115,035,319.04 - Step 4: Simplify right side
278,886,948.26x = 48,128,648,049,139,600 - Step 5: Solve for x
x = 48,128,648,049,139,600/278,886,948.26 - Step 6: Final answer
x = 172,574,042.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.