Finding the Fourth Proportional to 855,129,724.80, 1,282,694,587.20 and 732,685,718.40
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Solution
The fourth proportional to 855,129,724.80, 1,282,694,587.20 and 732,685,718.40 is: 1,099,028,577.60
Step by Step Solution
- Step 1: Write the proportion equation
855,129,724.80 : 1,282,694,587.20 = 732,685,718.40 : x - Step 2: Convert to fraction form
855,129,724.80/1,282,694,587.20 = 732,685,718.40/x - Step 3: Cross multiply
855,129,724.80x = 1,282,694,587.20 × 732,685,718.40 - Step 4: Simplify right side
855,129,724.80x = 939,812,005,110,423,424 - Step 5: Solve for x
x = 939,812,005,110,423,424/855,129,724.80 - Step 6: Final answer
x = 1,099,028,577.60
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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.