Finding the Fourth Proportional to 282,756,994.56, 390,206,992.68 and 158,996,589.12
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Solution
The fourth proportional to 282,756,994.56, 390,206,992.68 and 158,996,589.12 is: 219,416,608.89
Step by Step Solution
- Step 1: Write the proportion equation
282,756,994.56 : 390,206,992.68 = 158,996,589.12 : x - Step 2: Convert to fraction form
282,756,994.56/390,206,992.68 = 158,996,589.12/x - Step 3: Cross multiply
282,756,994.56x = 390,206,992.68 × 158,996,589.12 - Step 4: Simplify right side
282,756,994.56x = 62,041,580,886,892,808 - Step 5: Solve for x
x = 62,041,580,886,892,808/282,756,994.56 - Step 6: Final answer
x = 219,416,608.89
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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.