Finding the Fourth Proportional to 75,863,678.64, 104,690,762.35 and 42,373,646.44
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Solution
The fourth proportional to 75,863,678.64, 104,690,762.35 and 42,373,646.44 is: 58,475,009.77
Step by Step Solution
- Step 1: Write the proportion equation
75,863,678.64 : 104,690,762.35 = 42,373,646.44 : x - Step 2: Convert to fraction form
75,863,678.64/104,690,762.35 = 42,373,646.44/x - Step 3: Cross multiply
75,863,678.64x = 104,690,762.35 × 42,373,646.44 - Step 4: Simplify right side
75,863,678.64x = 4,436,129,349,763,257 - Step 5: Solve for x
x = 4,436,129,349,763,257/75,863,678.64 - Step 6: Final answer
x = 58,475,009.77
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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.