Finding the Fourth Proportional to 7,159,127,194.16, 9,879,903,531.48 and 3,987,312,521.12
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Solution
The fourth proportional to 7,159,127,194.16, 9,879,903,531.48 and 3,987,312,521.12 is: 5,502,662,823.29
Step by Step Solution
- Step 1: Write the proportion equation
7,159,127,194.16 : 9,879,903,531.48 = 3,987,312,521.12 : x - Step 2: Convert to fraction form
7,159,127,194.16/9,879,903,531.48 = 3,987,312,521.12/x - Step 3: Cross multiply
7,159,127,194.16x = 9,879,903,531.48 × 3,987,312,521.12 - Step 4: Simplify right side
7,159,127,194.16x = 39,394,263,058,527,903,744 - Step 5: Solve for x
x = 39,394,263,058,527,903,744/7,159,127,194.16 - Step 6: Final answer
x = 5,502,662,823.29
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.