Finding the Fourth Proportional to 855,129,726.80, 1,282,694,590.20 and 732,685,720.40
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Solution
The fourth proportional to 855,129,726.80, 1,282,694,590.20 and 732,685,720.40 is: 1,099,028,580.60
Step by Step Solution
- Step 1: Write the proportion equation
855,129,726.80 : 1,282,694,590.20 = 732,685,720.40 : x - Step 2: Convert to fraction form
855,129,726.80/1,282,694,590.20 = 732,685,720.40/x - Step 3: Cross multiply
855,129,726.80x = 1,282,694,590.20 × 732,685,720.40 - Step 4: Simplify right side
855,129,726.80x = 939,812,009,873,869,824 - Step 5: Solve for x
x = 939,812,009,873,869,824/855,129,726.80 - Step 6: Final answer
x = 1,099,028,580.60
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Similar ratio
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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.