Finding the Fourth Proportional to 30,497,987.88, 42,087,954.48 and 16,559,930.40
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Solution
The fourth proportional to 30,497,987.88, 42,087,954.48 and 16,559,930.40 is: 22,853,100.99
Step by Step Solution
- Step 1: Write the proportion equation
30,497,987.88 : 42,087,954.48 = 16,559,930.40 : x - Step 2: Convert to fraction form
30,497,987.88/42,087,954.48 = 16,559,930.40/x - Step 3: Cross multiply
30,497,987.88x = 42,087,954.48 × 16,559,930.40 - Step 4: Simplify right side
30,497,987.88x = 696,973,596,867,168.12 - Step 5: Solve for x
x = 696,973,596,867,168.12/30,497,987.88 - Step 6: Final answer
x = 22,853,100.99
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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.