Finding the Fourth Proportional to 90,303,128,525.16, 124,625,288,386.98 and 54,175,514,020.20
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Solution
The fourth proportional to 90,303,128,525.16, 124,625,288,386.98 and 54,175,514,020.20 is: 74,766,391,470.03
Step by Step Solution
- Step 1: Write the proportion equation
90,303,128,525.16 : 124,625,288,386.98 = 54,175,514,020.20 : x - Step 2: Convert to fraction form
90,303,128,525.16/124,625,288,386.98 = 54,175,514,020.20/x - Step 3: Cross multiply
90,303,128,525.16x = 124,625,288,386.98 × 54,175,514,020.20 - Step 4: Simplify right side
90,303,128,525.16x = 6,751,639,058,280,302,510,080 - Step 5: Solve for x
x = 6,751,639,058,280,302,510,080/90,303,128,525.16 - Step 6: Final answer
x = 74,766,391,470.03
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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.