Finding the Fourth Proportional to 750,583,618.38, 1,124,894,889.72 and 418,577,379.12
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Solution
The fourth proportional to 750,583,618.38, 1,124,894,889.72 and 418,577,379.12 is: 627,319,252.90
Step by Step Solution
- Step 1: Write the proportion equation
750,583,618.38 : 1,124,894,889.72 = 418,577,379.12 : x - Step 2: Convert to fraction form
750,583,618.38/1,124,894,889.72 = 418,577,379.12/x - Step 3: Cross multiply
750,583,618.38x = 1,124,894,889.72 × 418,577,379.12 - Step 4: Simplify right side
750,583,618.38x = 470,855,554,724,479,040 - Step 5: Solve for x
x = 470,855,554,724,479,040/750,583,618.38 - Step 6: Final answer
x = 627,319,252.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.