Finding the Fourth Proportional to 54,125,879.14, 74,621,455.41 and 42,999,290.74
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Solution
The fourth proportional to 54,125,879.14, 74,621,455.41 and 42,999,290.74 is: 59,281,617.36
Step by Step Solution
- Step 1: Write the proportion equation
54,125,879.14 : 74,621,455.41 = 42,999,290.74 : x - Step 2: Convert to fraction form
54,125,879.14/74,621,455.41 = 42,999,290.74/x - Step 3: Cross multiply
54,125,879.14x = 74,621,455.41 × 42,999,290.74 - Step 4: Simplify right side
54,125,879.14x = 3,208,669,656,616,536 - Step 5: Solve for x
x = 3,208,669,656,616,536/54,125,879.14 - Step 6: Final answer
x = 59,281,617.36
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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.