Finding the Fourth Proportional to 610,079,643.20, 915,119,464.80 and 533,552,139.20
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Solution
The fourth proportional to 610,079,643.20, 915,119,464.80 and 533,552,139.20 is: 800,328,208.80
Step by Step Solution
- Step 1: Write the proportion equation
610,079,643.20 : 915,119,464.80 = 533,552,139.20 : x - Step 2: Convert to fraction form
610,079,643.20/915,119,464.80 = 533,552,139.20/x - Step 3: Cross multiply
610,079,643.20x = 915,119,464.80 × 533,552,139.20 - Step 4: Simplify right side
610,079,643.20x = 488,263,948,067,599,040 - Step 5: Solve for x
x = 488,263,948,067,599,040/610,079,643.20 - Step 6: Final answer
x = 800,328,208.80
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1.5x scale
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.