Finding the Fourth Proportional to 1,587,332,303.74, 2,381,091,118.80 and 481,973,219.68
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Solution
The fourth proportional to 1,587,332,303.74, 2,381,091,118.80 and 481,973,219.68 is: 722,987,965.52
Step by Step Solution
- Step 1: Write the proportion equation
1,587,332,303.74 : 2,381,091,118.80 = 481,973,219.68 : x - Step 2: Convert to fraction form
1,587,332,303.74/2,381,091,118.80 = 481,973,219.68/x - Step 3: Cross multiply
1,587,332,303.74x = 2,381,091,118.80 × 481,973,219.68 - Step 4: Simplify right side
1,587,332,303.74x = 1,147,622,152,879,489,536 - Step 5: Solve for x
x = 1,147,622,152,879,489,536/1,587,332,303.74 - Step 6: Final answer
x = 722,987,965.52
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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.