Finding the Fourth Proportional to 103,032,055.80, 154,548,083.70 and 72,798,967.80
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Solution
The fourth proportional to 103,032,055.80, 154,548,083.70 and 72,798,967.80 is: 109,198,451.70
Step by Step Solution
- Step 1: Write the proportion equation
103,032,055.80 : 154,548,083.70 = 72,798,967.80 : x - Step 2: Convert to fraction form
103,032,055.80/154,548,083.70 = 72,798,967.80/x - Step 3: Cross multiply
103,032,055.80x = 154,548,083.70 × 72,798,967.80 - Step 4: Simplify right side
103,032,055.80x = 11,250,940,968,828,004 - Step 5: Solve for x
x = 11,250,940,968,828,004/103,032,055.80 - Step 6: Final answer
x = 109,198,451.70
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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.