Finding the Fourth Proportional to 539,352,030.90, 809,028,046.35 and 310,028,459.70
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Solution
The fourth proportional to 539,352,030.90, 809,028,046.35 and 310,028,459.70 is: 465,042,689.55
Step by Step Solution
- Step 1: Write the proportion equation
539,352,030.90 : 809,028,046.35 = 310,028,459.70 : x - Step 2: Convert to fraction form
539,352,030.90/809,028,046.35 = 310,028,459.70/x - Step 3: Cross multiply
539,352,030.90x = 809,028,046.35 × 310,028,459.70 - Step 4: Simplify right side
539,352,030.90x = 250,821,719,063,990,720 - Step 5: Solve for x
x = 250,821,719,063,990,720/539,352,030.90 - Step 6: Final answer
x = 465,042,689.55
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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.