Finding the Fourth Proportional to 476,928,403.80, 715,392,605.70 and 446,695,315.80
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Solution
The fourth proportional to 476,928,403.80, 715,392,605.70 and 446,695,315.80 is: 670,042,973.70
Step by Step Solution
- Step 1: Write the proportion equation
476,928,403.80 : 715,392,605.70 = 446,695,315.80 : x - Step 2: Convert to fraction form
476,928,403.80/715,392,605.70 = 446,695,315.80/x - Step 3: Cross multiply
476,928,403.80x = 715,392,605.70 × 446,695,315.80 - Step 4: Simplify right side
476,928,403.80x = 319,562,525,924,146,432 - Step 5: Solve for x
x = 319,562,525,924,146,432/476,928,403.80 - Step 6: Final answer
x = 670,042,973.70
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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.